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((1+costheta+isintheta)/(1+costheta-isin...

`((1+costheta+isintheta)/(1+costheta-isintheta))^(n)`

A

`cisntheta`

B

`-cisntheta`

C

`cistheta`

D

`-cistheta`

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(costheta+isintheta)^(10)+(costheta-isintheta)^(10)

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(1-costheta+isintheta)^8 =

(1-costheta+isintheta)^6 =

((costheta+isintheta)^(5)(cos3theta-isin3theta)^(6))/((cos2theta+isin2theta)^(3)(cos4theta-isin4theta)^(5))

((costheta+isintheta)^5(cos3theta-isin3theta)^6)/((cos2theta+isin2theta)^3(cos4theta-isin4theta)^5)=

Statement-I : ((costheta+isintheta)^5(cos3theta-isin3theta)^6)/((cos2theta+isin2theta)^3(cos4theta-isin4theta)^5)=1 Statement-II : ((cos2theta+isin2theta)^3(cos3theta-isin3theta)^4)/((cos3theta+isin3theta)^2(cos4theta+isin4theta)^(-3))=1