TRIG REVIEW #2: IDENTITIES, EQUATIONS, & POLAR GRAPHS

becomingresolved:

So this trig review is going to be about trig identities, how to solve trig equations & oblique triangle problems, and last but not least, polar graphs.

Trig Identities: You have to know these identities (except half-angle and sum/difference). Also the bottom two are necessary for solving trig integrals, so memorize those!

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Trig Equations: Here are various example problems showing how to solve trig equations.
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Oblique Triangle Equations: You only have to know the equilateral equation for area of cross sections in Calc BC. The rest is just extra info. that is nonetheless helpful to know. (:

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Polar Coordinate:

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Polar Graphs: Memorize these trig graphs for finding polar area! (All graphs come from Wolfram Alpha)

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And that’s basically all the trig you need to know for Calc BC. Good luck! If you haven’t seen my part 1 post, you can find it here.

Trig Review #1: Basic Trig & Graphing

becomingresolved:

Here is some useful information that I’ve created about the basics of trigonometry as well as the graphs. Part 2 is out. You can find it here.

All graphs come from Wolfram Alpha (very cool resource).

Degrees & Radians; Six Trig Functions

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Coterminal Angles, Arc Length, and Signs

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The All Important Unit Circle (sorry, it’s a bit hard to see)

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Those Pesky Trig Graphs

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I have to know more graphs???

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I hope this has helped you get closer to being a master at trig. More to come regarding trig identities and equations! (:

(via visualizingmath)

phantom-quantum:

dangerhamster:

JACK HARKNESS MEETING BUCKY AND STEVE IN THE 1940s AND FLIRTING FURIOUSLY WITH BOTH OF THEM

JACK HARKNESS SEEING THEM AGAIN IN THE 21ST CENTURY AND THEY’RE ALL EQUALLY CONFUSED AS EACH OTHER

"BUT
YOU
194-
I”

(via llama-henderson)

kentmcfuller:

do not fix your dark circles let the world know youre tired of its shit and ready to kill a man

(via aseuraii)

letterstomycountry:

Via A Mighty Girl:

Professional hacker Parisa Tabriz is responsible for keeping the nearly billion users of Google Chrome safe by finding vulnerabilities in their system before malicious hackers do. Tabriz, a “white hat” hacker who calls herself Google’s “Security Princess”, is head of the company’s information security engineering team. The 31-year-old Polish-Iranian-American is also an anomaly in Silicon Valley according to a recent profile in The Telegraph: “Not only is she a woman – a gender hugely under-represented in the booming tech industry – but she is a boss heading up a mostly male team of 30 experts in the US and Europe.”Tabriz came up with “Security Princess” while at a conference and the unusual title is printed on her business card. “I knew I’d have to hand out my card and I thought Information Security Engineer sounded so boring,” she says. “Guys in the industry all take it so seriously, so security princess felt suitably whimsical.” Her curiosity, mischievousness, and innovative thinking are all assets in her business: a high-profile company like Google is constantly in the crosshairs of so-called “black hat” hackers.Tabriz came into internet security almost by accident; at the University of Illinois’ computer engineering program, her interest was first whetted by the story of early hacker John Draper, who became known as Captain Crunch in the 1960s after he learned how to make free long-distance calls using a toy whistle from a Cap’n Crunch cereal box. She realized that, to beat the hackers of today, she had to be prepared for similar — but more advanced — out-of-the-box thinking.While women at still very under-represented in the tech industry — Google recently reported that only 30% of its staff is female — Tabriz has hope for the future: “[F]ifty years ago there were similar percentages of women in medicine and law, now thankfully that’s shifted.” And, while she hasn’t encountered overt sexism at Google, when she was offered the position, at least one classmate said, “you know you only got it cos you’re a girl.” To help address this imbalance, she mentors under-16 students at a yearly computer science conference that teaches kids how to “hack for good” — and she especially encourages girls to pursue internet security work. One 16-year-old who attended, Trinity Nordstrom, says, “Parisa is a good role model, because of her I’d like to be a hacker.”Tabriz, who was named by Forbes as one of the “top 30 under 30 to watch” in 2012, also wants the public to realize that hacking can be used for positive ends. “[H]acking can be ugly,” she says. “The guy who published the private photos of those celebrities online made headlines everywhere. What he did was not only a violation of these women but it was criminal, and as a hacker I was very saddened by it. I feel like we, the hackers, need better PR to show we’re not all like that… [A]fter all I’m in the business of protecting people.”To read more about Google’s “Security Princess” in The Telegraph, visit http://bit.ly/Z6Z5RG

letterstomycountry:

Via A Mighty Girl:

Professional hacker Parisa Tabriz is responsible for keeping the nearly billion users of Google Chrome safe by finding vulnerabilities in their system before malicious hackers do. Tabriz, a “white hat” hacker who calls herself Google’s “Security Princess”, is head of the company’s information security engineering team. The 31-year-old Polish-Iranian-American is also an anomaly in Silicon Valley according to a recent profile in The Telegraph: “Not only is she a woman – a gender hugely under-represented in the booming tech industry – but she is a boss heading up a mostly male team of 30 experts in the US and Europe.”

Tabriz came up with “Security Princess” while at a conference and the unusual title is printed on her business card. “I knew I’d have to hand out my card and I thought Information Security Engineer sounded so boring,” she says. “Guys in the industry all take it so seriously, so security princess felt suitably whimsical.” Her curiosity, mischievousness, and innovative thinking are all assets in her business: a high-profile company like Google is constantly in the crosshairs of so-called “black hat” hackers.

Tabriz came into internet security almost by accident; at the University of Illinois’ computer engineering program, her interest was first whetted by the story of early hacker John Draper, who became known as Captain Crunch in the 1960s after he learned how to make free long-distance calls using a toy whistle from a Cap’n Crunch cereal box. She realized that, to beat the hackers of today, she had to be prepared for similar — but more advanced — out-of-the-box thinking.

While women at still very under-represented in the tech industry — Google recently reported that only 30% of its staff is female — Tabriz has hope for the future: “[F]ifty years ago there were similar percentages of women in medicine and law, now thankfully that’s shifted.” And, while she hasn’t encountered overt sexism at Google, when she was offered the position, at least one classmate said, “you know you only got it cos you’re a girl.” To help address this imbalance, she mentors under-16 students at a yearly computer science conference that teaches kids how to “hack for good” — and she especially encourages girls to pursue internet security work. One 16-year-old who attended, Trinity Nordstrom, says, “Parisa is a good role model, because of her I’d like to be a hacker.”

Tabriz, who was named by Forbes as one of the “top 30 under 30 to watch” in 2012, also wants the public to realize that hacking can be used for positive ends. “[H]acking can be ugly,” she says. “The guy who published the private photos of those celebrities online made headlines everywhere. What he did was not only a violation of these women but it was criminal, and as a hacker I was very saddened by it. I feel like we, the hackers, need better PR to show we’re not all like that… [A]fter all I’m in the business of protecting people.”

To read more about Google’s “Security Princess” in The Telegraph, visit http://bit.ly/Z6Z5RG

(via goddammitstacey)

runs-on-ramen:

necessary:

he needs those parts for his space ship

he’s going to otter space

runs-on-ramen:

necessary:

he needs those parts for his space ship

he’s going to otter space

(Source: jajaneenee, via everyworldneedslove)

nordreys:

jkrockin:

out-there-on-the-maroon:

Gabriel Perez by Jimmy Backius.

THE FUTURE IS HERE!

*SQUEEEEEEEEEEEEEEEEEEEEEEEEEEE*

(Another one for the “explain my sexuality in picture form” folder.)

hey nordreys

GASP!!!!!

also holy shit the video is 50/50 very silly and smoking hot

(Source: trashyprinces, via rifa)

a-flood-of-blood-to-the-heart:

IVE GOTTA BONE TO PICK WITH YOU
HA HAHAHAHAHAHAHAHAHA

a-flood-of-blood-to-the-heart:

IVE GOTTA BONE TO PICK WITH YOU

HA HAHAHAHAHAHAHAHAHA

(via keairarogue)

mxcleod:

ifangirlinthecorner:

Scientists discover most relaxing tune ever

Sound therapists and Manchester band Marconi Union compiled the song. Scientists played it to 40 women and found it to be more effective at helping them relax than songs by Enya, Mozart and Coldplay.

Weightless works by using specific rhythms, tones, frequencies and intervals to relax the listener. A continuous rhythm of 60 BPM causes the brainwaves and heart rate to synchronise with the rhythm: a process known as ‘entrainment’. Low underlying bass tones relax the listener and a low whooshing sound with a trance-like quality takes the listener into an even deeper state of calm.

Guys listen its so helpful

This will make everything going on in your life disappear, and leave you overcome with relaxation and joy.

(Source: legalizememes, via llama-henderson)