Question

Which of the following is the simplification of (1-cos^2x)(cscx)

Answer 1

sinx is not a answer for some reason

Answer 2

answer choices: cosx, 1, 1-sinx

Answer 3

answer must be sinx

Answer 4

i know... its not an answer choice for some reason. which one would you go with? haha

Answer 5

cosx.... but that'll be the wrong answer

Answer 6

ill go with 1-sinx because it is the only one with sin in it. but 1- sinx = cosx anyway right

Answer 7

anyone have any idea about this one?

Answer 8

It's obviously not 1 and it cannot be either of the other two since it IS sinx.

The options given are insufficient.

Answer 9

looks like ill have to give my teacher a hard time. thanks.