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Question

If log102=a and log103=b, then express log60 in terms of a and b

A
ab1
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B
ab+1
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C
a+b+1
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D
a+b1
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Solution

The correct option is D a+b+1
log102=alog103=blog60=log(2×3×10)=log2+log3+log10=a+b+1

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