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Best way to find an answer with an exponent. For example, my equation is (9*10e9)*(1.6*10e-19)^2/(1.0*10e-15)^2. And the final answer I got was 2.304. But the answer is 2.304*10e-28.

Guest Oct 20, 2017
 #1
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(9*10^9)*(1.6*10^-19)^2/(1.0*10^-15)^2 =

 

[9 * 1.6^2 * 1^2)  ( 10^9 * 10^[(-19)*2] * 10^[15*2] )  =

 

(23.04) (10^9 * 10^-38 * 10^30 )  =

 

23.04 * 10  =

 

230.4

 

 

 WolframAlpha  verifies this :

 

https://www.wolframalpha.com/input/?i=(9*10%5E9)*(1.6*10%5E-19)%5E2%2F(1.0*10%5E-15)%5E2

 

 

cool cool cool

CPhill  Oct 20, 2017

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