Prove that (a) (1+i)^n+(1-i)^n=2^((n+2)/...

Prove that `(a) (1+i)^n+(1-i)^n=2^((n+2)/2).cos((npi)/4)`, where n is a positive integer. `(b) (1+isqrt(3))^n+(1-isqrt(3)^n=2^(n+1)cos((npi)/3)`, where n is a positive integer

Prove that (a) (1+i)^n+(1-i)^n=2^((n+2)/2).cos((npi)/4), where n is a ...
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Prove that (a)(1+i)^(n)+(1-i)^(n)=2^((n+2)/(2))*cos((n pi)/(4)) where ...
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Prove that 2^n >1+nsqrt(2^(n-1)),AAn >2 where n is a positive integer.
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सिद्ध करे (1+i)^(n)=2^(n/2)("cos"(npi)/4+i"sin"(npi)/4)
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If n is a positive integer, show that (1 + i)^(n) + (1 - i)^(n)...
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If n is integer then show that (1 + i)^(2n) + (1 - i)^(2n) = 2 ^(n+...
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यदि n पूर्णांक हो, तो सिद्ध करें की ((-1+isqrt()3)/2)^(n)+((-1-isqrt()...
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((-1 + isqrt(3))/(2))^(n) + ((-1 - isqrt(3))/(2))^(n), जहाँ n, 3 का गण...
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A : (1+i)^(6)+(1-i)^(6)=0 R : If n is a positive integer then (1+i)^...
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