Question

PLEASE HELP & Explain PLEASE
The expression cos^2x+ sin^2x/ sinx is equivalent to
1) sin x
2) cos x
3) sec x
4) csc x

Answer 1

Hint

cos^2x+sin^2x=1

1/sinx=?

Answer 2

csc

Answer 3

so thats the answer? how?

Answer 4

cos^2x+sin^2x=1

1/sinx=csc

Answer 5

oh...

Answer 6

thank you

Answer 7

i don't think you learned trig identities yet, look them up.

cos^2x+sin^2x is one of them

Answer 8

I did, but I'm confused on how to use them to answer questions like this

Answer 9

well if you know that cos^2x+sin^2x=1.....

Answer 10

then the question simplifies to 1/sinx xD

Answer 11

oh! wow, loll I'm slow