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If sin (A-B) =1/2 and cos(A+B) …

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If sin (A-B) =1/2 and cos(A+B) =1/2 then angle A =? ,Angle B =?

    • Posted by Isha Gupta 3 years, 2 months ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Vainu Bansal 3 years, 2 months ago

    Sin 30 = 1/2 so put sin( A-B) = sin 30 so sin cut hence A-B=30 next same in 2nd case A+B=60 add both you get A=45 and B=15

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