Question

Simplify (1-cosA) (1+cosA) (1+cot*cotA)

Answer 1

Step-by-step explanation:

(1-cos²A)(1+cot²A)

=sin²A(1+cos²A/sin²A)

=sin²A(sin²A+cos²A/cos²A)

=sin²A(1/sin²A)

=1

Answer 2

Answer:

here is your answer ..replace the ø as A...