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Text goes as following "Let a be a real number. Prove that 4^1/2+a/2 can be simplified to 2*2^a

How can I prove this?

 Sep 2, 2015
 #1
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No, it's FALSE. You are missing something.

 Sep 2, 2015
 #2
avatar+33661 
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Use of brackets would clarify the question!

 

\(4^{\frac{1}{2}+\frac{a}{2}}\\\\ =4^{\frac{1}{2}(1+a)}\\\\ =2^{1+a}\\\\ =2\times2^a\)

 Sep 2, 2015

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