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Discussion Response Post to: sin x -cos x =1/1.414 find x

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10 Aug 2007 23:23:13 IST

Subject: Re:sin x -cos x =1/1.414 find x

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shyam_nair_s (129)

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Sinx ?cosx = 1/1.414

=1/? 2

Ø dividing by ?2 on both sides

Ø 1/?2 sinx ? 1/?2 cosx =1/2

Ø sin(x ? ?/4) =1/2

Ø x ??/4 = ?/6

Ø x = 5?/12---------------ANS

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