Question

(sec theta + tab theta) (1-sin theta) =cos theta​

Answer 1

Answer:

theta of the sin cos and sac

Answer 2

Explanation:

sec theta = 1/cos theta

sec theta = 1/cos thetatan theta = sintheta/cos theta

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

Using the identity:- (a+b)(a-b) = a² - b²

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

= (1)²-(sin theta)²/cos theta

= 1- sin²theta/cos theta

(1-sin²theta = cos²theta)

= cos²theta/cos theta

= cos theta

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