Question

MEDAL AND FAN
What is the value of (1 + sin(w))(1 - sin(w)) in terms of cos(w)

Answer 1

1 + cos2(w) I THINK THIS IS THE ANSWER

Answer 2

if we expand the brackets we get
1 - sin^2 (w)

- theres an identity which links sin^2 w and cos^2 w

Answer 3

OH SO cos2(w) THis must be it

Answer 4

i mean cos^2 w

Answer 5

do you mean the square of cos w?

Answer 6

yes thats correct

Answer 7

so should put this as my final answer