Find (Sec A + tan A) (1-Sin A)
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please tell me what we have to find?
Answered by
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Answer:
(secA + tan A )( 1 - sinA)
= (1 / cos A + sinA/ cosA)(1- sinA)
= ((1+ sinA) / cos A)( 1- sinA )
= (1 + sinA) ( 1 - sinA) / cos A
= (1 - (sinA) ^(2)) / cos A
= (cosA)^(2) / cosA
= cosA
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