Question

what will be the answer with explanation please​

Answer 1

Step-by-step explanation:

(1 - tan A + sec A)(1 - cot A + cosec A)

=> (1 - sin A/cos A + 1/cos A)(1 - cos A/sin A + 1/ sin A)

=> [(cos A - sin A + 1) / cos A] [(sin A - cos A + 1) / sin A ]

=> [{1 + (cos A - sin A)}/cos A] [{1 - (cos A - sin A)}/cos A]

=> [1² - (cosA - sinA)²] / cos A sin A

=> [1 - (cos²A + sin²A - 2 sin A cos A) ] / cos A sin A

=> [1 - 1 + 2sin A cos A] / cos A sin A

=> 2 sin A cos A / sin A cos A

=> 2

=> option D

Answer 2

Answer:

answer is D) 2

here is the full explanation with photo

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