Thursday

July 31, 2014

July 31, 2014

Posted by **Nihira** on Tuesday, June 17, 2014 at 11:21pm.

csc^2x = 2sec2x / sec2x - 1

Sorry i really tried. I got : LS = 1 - (cos^2x/sin^2x) but thats it. please help

- Math -
**Steve**, Wednesday, June 18, 2014 at 5:26ammultiply RS top and bottom by cos2x and you have

2/(1-cos2x)

= 2/(1-(cos^2 x - sin^2 x))

= 2/(1-cos^2 x + sin^2x)

= 2/(2sin^2 x)

= 1/sin^2 x

= csc^2 x

**Related Questions**

Pre-Calculus - I don't understand,please be clear! Prove that each equation is ...

Pre-Calculus - Prove that each equation is an identity. I tried to do the ...

MATH - Hi, I really need help with these questions. I did some of them halfway, ...

Math - Prove this identity 1. csc^2(pi/2-x)=1+sin^2xcsc^2(pi/2-x) 2. tan(pi/4+x...

verifying trigonometric identities - How do I do these problems? Verify the ...

Math - Calculus - The identity below is significant because it relates 3 ...

Trigonometry - Prove the identity sin(x+y+z)+sin(x+y-z)+sin(x-y+z)+ sin(x-y-z...

Math - Solve this equation algebraically: (1-sin x)/cos x = cos x/(1+sin x) --- ...

Math - Prove each identity: a) 1-cos^2x=tan^2xcos^2x b) cos^2x + 2sin^2x-1 = sin...

Trigonometry - Hello all, In our math class, we are practicing the trigonometric...