Question

sec theta by sec theta +tan theta +tan theta by sec theta minus tan theta =1+sin square theta by 1-sin square theta

Answer 1

sec theta+tan theta(1-sin theta)

1/cos theta + sin theta/cos theta(1-sin theta)

1+sin theta/cos theta(1-sin theta)

1-sin²theta/cos theta

cos²theta/cos theta=cos theta

Answer 2

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