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     EduGorilla 
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    If cos( A  B) = 3/5 and tanA . tanB = 2, 

    Options :-

    1. cos A cos B = 1/5
    2. sin A sin B = -2/5
    3. cos (A + B) = 1/5
    4. sin A sin B =4/5
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Reply To: If cos( A – B) = 3/5 and tanA . tanB = 2, ….
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