Cosec A = 15/7 and A+B = 90° , find the value of sec B.
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A+B=90°
or A=90°-B
cosecA=15/7
or cosec(90-B)=15/7
or sec B=15/7
or A=90°-B
cosecA=15/7
or cosec(90-B)=15/7
or sec B=15/7
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