Answer:
csc θ * sin θ
Simplified using trig identities:
csc (x) = 1/sin(x)
so, csc (0) = 1/sin(0)
1/sin(0) * sin (0), the result will be sin(0) / sin (0) which is equal to 1.
Therefore, the answer is 1.
Explanation:
Expression in sin θ and cos θ below
4cos ec^2 2θ as 2 / 2 (4 sin θ cos θ )^2
or
cos ec^2 θ as 1 / sin ^2 θ
. Accept terms like
cos ec^2 θ = 1 +cot^2 θ =1 + cot^2 θ /sin^2 θ