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CBSE Class 10 Answered

find value of A
Asked by | 06 Oct, 2008, 09:17: PM
answered-by-expert Expert Answer

cos A - sin A/ cosA + sinA = 1-3/ 1+3

On the LHS Multiply and divide by cos A, you get

1 - tan A / 1+ tan A   = 1-3/ 1+3

tanA = 3

A = 60 degrees

Answered by | 07 Oct, 2008, 10:49: AM

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