Math, asked by sunnysk, 1 year ago

solve : 2raise to power 1.4

Answers

Answered by as1965286p7d7zu
12
CHECK THIS OUT..
I HOPE YOU'LL UNDERSTAND.
Attachments:

as1965286p7d7zu: 1.4 can be written as 1+0.4 or 1+2/5
as1965286p7d7zu: we know that if base 2 is same then we will use laws of exponent as 2^1 (2^2/5)
sunnysk: then how you solve 2^(2/5)
sunnysk: are you there
as1965286p7d7zu: ya
as1965286p7d7zu: wait
sunnysk: ok
as1965286p7d7zu: check the ans bro
sunnysk: thanks sir
as1965286p7d7zu: okk
Answered by guptasingh4564
4

Therefore the answer is 2.6390

Step-by-step explanation:

Given;

2^{1.4} =?

Now,

2^{1.4} =2^{1+\frac{2}{5} }

=2^{1} \times2^{\frac{2}{5} }   (∵ a^{m+m} =a^{m}\times a^{n} )

=2^{1+\frac{2}{5} }

=2^{\frac{7}{5} }

=\sqrt[5]{2^{7} }  (∵ a^{\frac{m}{n} } =\sqrt[n]{a^{m} } )

=\sqrt[5]{2^{2}\times2^{5}}  

=2\times \sqrt[5]{4}   (∵\sqrt[5]{2^{5} } =2 )

=2.6390

So the answer is 2.6390

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