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Mathematics 22 Online
OpenStudy (anonymous):

here it is...

OpenStudy (anonymous):

1/2 + 1/4 + 1/8 + (1/2)^k + (1/2)^k +1 = 1 - (1/2)^k+1 1 - (1/2)^k + (1/2)^k+1 = 1 - (1/2)^k+1

OpenStudy (mimi_x3):

Is it two separate ones?

OpenStudy (anonymous):

no just the consistent one..do you want me to type the whole thing out?

OpenStudy (mimi_x3):

well, i dont understand your question..what's the whole question?

OpenStudy (anonymous):

prove using mathematical induction: \[\sum_{i=1}^{n} (1/2)^i = 1 - (1/2)^n\]

OpenStudy (anonymous):

The series of numbers is: 1/2 + 1/4 + 1/8 + (1/2)^k= 1 - (1/2)^k Showing for n=k+1 1/2 + 1/4+ 1/8 + (1/2)^k+1 = 1 - (1/2)^k+1 Using subsitution from assuming n = k , 1 - (1/2)^k + (1/2)^k+1 = 1 - (1/2)^k+1 Where do we go from here..?

OpenStudy (mimi_x3):

then assume \(n=k+1\)

OpenStudy (anonymous):

lol i already did tat

OpenStudy (anonymous):

tats tis part: 1 - (1/2)^k + (1/2)^k+1 = 1 - (1/2)^k+1

OpenStudy (mimi_x3):

woops. normally you assume \(n=k\) first then \(n=k+1\)

OpenStudy (anonymous):

oh i did both of them, just skipped n = k and subsituted it in later for a portion of n = k+1

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