1. What will come in place of the question mark (?) in the given questions ?$$(0.8)^{2.5}\times\frac{(0.8)^{1.5}}{(0.8)^{0.5}}=(0.2)^{3.5}\times2^{?}$$
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- By: anil on 05 May 2019 04.05 pmExpression : $$(0.8)^{2.5} imesfrac{(0.8)^{1.5}}{(0.8)^{0.5}}=(0.2)^{3.5} imes2^{?}$$ => $$(0.8)^{2.5 + 1.5 - 0.5} = (0.2)^{3.5} imes 2^{x}$$ => $$(0.8)^{3.5} = (0.2)^{3.5} imes 2^{x}$$ => $$2^x = frac{(0.8)^{3.5}}{(0.2)^{3.5}}$$ => $$2^x = (4)^{3.5} = 2^7$$ => $$x = 7$$
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