SOLUTION: Choose the correct right hand side to make the equation an identity. (cscx + cotx)^2=________ select one: a. (cosx-1)^2/sin^2x b. (cosx+1)^2/sin^2x c. (sinx-1)^2/cos^2x

Question 1087885: Choose the correct right hand side to make the equation an identity.
(cscx + cotx)^2=________
select one:
a. (cosx-1)^2/sin^2x
b. (cosx+1)^2/sin^2x
c. (sinx-1)^2/cos^2x
d. (sinx+1)^2/cos^2x
Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!



Change to sines and cosines:



Make up a value for x, say 20�.

Use a calculator to calculate



Now calculate each of those:

a. 
b. 
c. 
d. 

So the correct choice is b.

Edwin

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