1.

By simplifying (2)^1/2/(18)^-1/2, we get __________(a) 36(b) 36^2(c) 9(d) 6I got this question in an online interview.Enquiry is from Laws of Exponents for Real Numbers in portion Number Systems of Mathematics – Class 9

Answer»

Right option is (d) 6

Explanation: We know that ACCORDING to LAWS of EXPONENTS, 1/18^-1/2 = 18^1/2

Hence, (2)^1/2/(18)^-1/2 =(2)^1/2 (18)^1/2

According to laws of exponents, (a^m)*(b^m) = (ab)^m

Applying that rule here, (2)^1/2 (18)^1/2 = (2*18)^1/2

= (36)^1/2

= 6.



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