Question

prove that.
cosec²A.tan²A=1/cos ²A​

Answer 1

Answer:

cosec²A.tan²A=1/cos ²A​

Step-by-step explanation:

LHS=cosec²A.tan²A

[cosec²A=1/sin²A​,

tan²A=sin ²A​/cos ²A​]

=1/sin²A​×sin ²A​/cos ²A​

=1/cos²A

LHS=RHS

Proved.