Use the fundamental identities to simplify the expression.

Question

Use the fundamental identities to simplify the expression.

sin θ / tan θ

Answer 1

simplify using the fundamental properties of trig functions:

1. sin∅/tan∅ (noting tan∅ = sin∅/cos∅)
2. = sin∅/(sin∅/cos∅); flip the denominator and multiply, kills the sin∅'s and you are left with cos∅
3. = cos∅

Hope this helps!