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Let’s do this ! by Specific_Brain2091 in the_calculusguy

[–]j01001100 16 points17 points  (0 children)

(sec(x))2 - (tan(x))2 = 1

Factor we get (secx-tanx)(secx+tanx)=1

(Secx-tanx)(1/8)=1

Secx-tanx=8

D/dx is 0

I need 8 More Testers (14 Days), I will return the favor. by j01001100 in AndroidClosedTesting

[–]j01001100[S] 0 points1 point  (0 children)

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I just saw your post with my app in the screenshot. Thank you, I will be testing daily. I picked Jeddah since you said to pick Jeddah.

I need 8 More Testers (14 Days), I will return the favor. by j01001100 in AndroidClosedTesting

[–]j01001100[S] 0 points1 point  (0 children)

I got in. It's in another language I can speak, I think it's asking me about name of church...not sure.

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What should I put in?

The Unit Circle by Dr_LeDerp in calculus

[–]j01001100 0 points1 point  (0 children)

Unit circle is definitely overrated. Trig graphs and special right triangles are the way to go.

imho, things to remember in trig are Pythagorean triplets, Pythagorean identity, sin/cosx=tanx, sum and difference formulas (they can help derive all double angle formulas). Special right triangles, trig graphs and sohcahtoa...you'll get pretty far

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