Question

Evaluate 8 divided by cot square theta subtract 8 divided by cos square theta

Answer 1

Answer:

-8

Step-by-step explanation:

let theta =A

8/cot²A-8/cos²A

(8cos²A-8cot²A)/cos²Acot²A

(8cos²A-(8cos²A/sin²A))/cos²A*cos²A/sin²A

((8cos²Asin²A-8cos²A)/sin²A)/cos²Acos²A/sinA

(8cos²Asin²A-8cos²A)/cos²Acos²A

8cos²A(sin²A-1)/cos²Acos²A

8(-cos²A)/cos²A

-8