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If sin(A+B)=1 and cos(A-B)=1, 0^@ < A+B...

If `sin(A+B)=1` and `cos(A-B)=1, 0^@ < A+Blt=90^@` , `AgeqB` find `A` and `B` .

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RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS-All Questions
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  3. If sin(A+B)=1 and cos(A-B)=1, 0^@ < A+Blt=90^@ , AgeqB find A and B .

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