Math, asked by piyushbihari, 11 months ago

prove that cot²A-cos²=cot²A cos²A
please help me in this question....

Answers

Answered by sandy1816

3

Step-by-step explanation:

➡cot²A-cos²A

➡cos²A/sin²A-cos²A

➡(cos²A-cos²Asin²A)/sin²A

➡{cos²A(1-sin²A)}/sin²A

➡(cos²A.cos²A)/sin²A

➡cot²Acos²A

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