Question

-1+sinA sin(90-A)/cot(90-A)​

Answer 1

Answer:

mathematics dakhte hee fever hi jata hai

so I can't answer it

Answer 2

Answer:

-sin²A

Explanation :

sin(90-A) = cosA

cot(90-A) = tanA

tanA = sinA/cosA

Therefore,

cosA/tanA = cos²A/sinA

cos²A - 1 = -sin²A