4-1.Complex numbers
easy

${(1 + i)^6} + {(1 - i)^6}$ का मान होगा

A

$0$

B

$2^7$

C

$2^6$

D

इनमें से कोई नहीं

Solution

(a) $\left( {1 + i} \right){{\rm{ }}^6} + {(1 – i)^6} = {[{(1 + i)^2}]^3} + {[{(1 – i)^2}]^3}$

 $ = \,{(2i)^3} + {( – 2i)^3}$$ = (8 – 8){i^3} = 0$.

Standard 11
Mathematics

Similar Questions

Start a Free Trial Now

Confusing about what to choose? Our team will schedule a demo shortly.