1.
What should come in place of question mark (?) in the following questions ?$$(10)^{24}\times (10)^{-21}=?$$
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By: anil on 05 May 2019 04.05 pm
By rule of indices, ab x ac = ab+c Hence, by this rule, we can solve as, $$(10)^{24} imes (10)^{-21}= (10)^{24-21} =10^3 = 1000$$ Therefore, correct option is D.
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