Posted by Sarah Fuller on Tuesday, March 9, 2010 at 8:32pm.
- trig - bobpursley, Tuesday, March 9, 2010 at 8:43pm
I think you must be usint * as the power to, as in ^
right side: (csc^2 x - 2)/csc^2 x
(1-2sin^2x) = 1-2(1-cos^2x)=-1+2cos^2x
which is clearly not an identity.
So I am not certain what your problem is.
- trig - Reiny, Tuesday, March 9, 2010 at 8:47pm
Your use of * in the last 3 posts will cause confusion
* means multiplication
/ means division and
^ means "to the exponent"
so you want to say
cos^2 x=csc^2 x-2/csc^2 x
but that statement is not true for all x's, I just tried any x and it did not work.
Use brackets to establish the proper order of operations.
Answer this Question
- trig - prove the identity: csc x-1/csc x+1 = cot^x/csc^x+2 csc x+1
- Alg2/Trig - Find the exact value of the trigonometric function given that sin u...
- Trigonometry - Hello all, In our math class, we are practicing the trigonometric...
- trig 30 - For csc^2 A-1/cot A csc A, what is the simplest equivalent trig ...
- Math - How to prove this question with using a LS=RS-style Proof? csc^2(x)cos^2(...
- verifying trigonometric identities - How do I do these problems? Verify the ...
- Math - cos(tan + cot) = csc only simplify one side to equal csc so far I got ...
- Pre-Calculus - I don't understand,please be clear! Prove that each equation is ...
- Trigonometry - I need to prove that the following is true. Thanks. csc^2(A/2)=...
- Pre-Calculus - Prove that each equation is an identity. I tried to do the ...