Math, asked by tony19, 1 year ago

Pls answer this questions with steps.
I dont want direct answer
And please if you dont know then leave it i m not interested that u know or not.

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Answers

Answered by glorybook
2
see first we will multiply both the side with 2
then it will become 2*2^3 +3*2^4................(n-1)*2^n + n 2^n +1 = 2(2^n+10)
subtracting from the actual equation
we will get
-2^n+10= 2*2^2+2^3+2^4.............2^n-n2^n+1
putting values and solving u will get
2^n+1-n(2^n+1)
2^10=2n-2
n=513
hope it helps
plz mark it as brainliest !!!

tony19: I did not understand putting what values???
I cannot understand how the next step arrived after subtracting
tony19: Pls explain.
glorybook: putting the values means 2¥∆^3= 8 and so on
glorybook: 2^3**
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