Question

(sin x/cos x) + (cos x/sin x)

Answer 1

tanx + cotx

Answer 2

^ I got to tanx + cotx, but my teacher says the answer is:

secx cscx

Answer 3

both are equivalent. If you want you can find the common denominator and add them

Answer 4

and you'll get the other expression

Answer 5

I know this might sound stupid but I still don't understand. What would the common denominator be?

Answer 6

(sin x/cos x) + (cos x/sin x)

sin^2x/(cosx sinx) + cos^2x/(sinx cosx)

Answer 7

and sin^2x + cos^2x = 1