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If cos(A-B) = sin (A+B)=1 find …

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If cos(A-B) = sin (A+B)=1 find A and B

    • Posted by Vanshika Gupta 9 months, 1 week ago

    CBSE > Class 10 > Mathematics
    • 1 answers

    Vedansh Tiwari 9 months, 1 week ago

    sin(A+B) = 1 sin(A+B) = sin90 A+B = 90 [equation 1] cos(A-B) = 1 cos(A-B) = cos 0 A-B = 0 [equation 2] add equation (1) and (2) we get 2A=90 A=45o put the value of A in equation (2) A-B=0 45-B=0 B=45o A=B=45o

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