Question

sin(π+A)sin(π-A)cosec^2A​

Answer 1

Answer:

Step-by-step explanation:I would help but I don’t know what this means sorry

Answer 2

Answer:

-1

Step-by-step explanation:

= -sinA × sinA × cosec^2(A)

= -sin^2(A) × cosec^2(A)

= -sin^2(A)/sin^2(A)

= -1

Note :

1) sin (π+A) = - sinA

2) sin (π-A) = sinA

2) cosecA = 1/sinA