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Find the value of (-1)^n+(-1)^2n+(-1)^2n+1+(-1)^4n+2,where n …

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Find the value of (-1)^n+(-1)^2n+(-1)^2n+1+(-1)^4n+2,where n is any positive odd integer

Posted by Kaushiki Gupta 7 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Hiru ? 7 years, 1 month ago

Since, n is an odd integer, (-1)^n = -1 (-1)^ 2n = +1 (-1)^2n+1 = -1 (-1)^4n+2 = +1 So, -1+(+1)+(-1)+(+1)= 0

1Thank You

Raunak _ Pandey ?? 7 years, 1 month ago

Whenever power of ( -1) is odd then answer is -1 , it doesn't matter how big power is , so answer is ............( -1)+(-1)+(-1)+(-1) = -4

0Thank You

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