Question

how can i prove

cosAcotA = cscA - sinA ?

i know ..... csc is 1/sin
....thats all i see

Answer 1

cot = cos/sin
cos^2= 1- sin^2

use them..

Answer 2

okay ill try it

Answer 3

wait, but i dont have a squared cos, or sin

Answer 4

lol you will when you substitute cot to be cos/sin

Answer 5

oh... lol let me try

Answer 6

do you know your trig identities?

Answer 7

i dont know them so i have a apaper with tthem written

Answer 8

learn them ;) do alot of questions

Answer 9

these are random review examples the instructor is giving us a test tomorrow . so far i got