please please answer me fast..
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log31. 87=x
log √31870=1/2*log(31870)
= 1/2* log(31.87×1000)
=1/2[ log 31.87 +log 1000]
=1/2[ x+log10³]
=1/2[x+3log10]
=1/2[x+3]
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