Question

find the value of 9cot ^2A - 9 cosec^2A​

Answer 1

Answer:

-9

Step-by-step explanation:

csc^2(thetha)-cot^2(thetha)=1

Multiply ing minus on both sides we get

cot^2(thetha)-csc^2(thetha)=-1

Question:- 9cot^2(A)-9csc^2(A)

9(cot^2(A)-csc^2(A))

9(-1)

-9