Math, asked by rockybhai56, 1 year ago

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Answered by jay1001

1

(SecA + CosA)(SecA - CosA)

= sec²A - cos²A

Sec²A - (1 - Sin²A) [ Identity ]

Sec²A - 1 + sin²A

Tan²A + sin²A [identity usage]

Answered by namita6123

1

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