If `x=cosalpha+isinalpha,y=cosbeta+isinbeta," then "(x)/(y)-(y)/(x)`

If x=cosalpha+isinalpha,y=cosbeta+isinbeta," then "(x-y)/(x+y)

If x=cosalpha+isinalpha,y=cosbeta+isinbeta," then "x^(m).y^(n)+(1)/(x^(m).y^(n))

If x=cos alpha+i sin alpha,y=cos beta+isinbeta, then x/y-y/x=

If x=cos alpha+i sin alpha,y=cos beta+isinbeta, then (x-y)/(x+y)=

If x+iy=(cosalpha+isinalpha)(cosbeta+isinbeta) then value of x^(2)+y^(2)

If a=cosalpha+isinalpha , b=cosbeta+isinbeta , c=cosgamma+isingamma and b/c+c/a+a/b=1 , then cos(beta-gamma)+cos(gamma-alpha)+cos(alpha-beta ) =

If If x cosalpha+y sinalpha=2a, x cos beta+y sinbeta=2aand 2sin""(alpha)/(2)sin""(beta)/(2)=1, then

If x cosalpha+y sinalpha=2a, x cos beta+y sinbeta=2aand 2sin""(alpha)/(2)sin""(beta)/(2)=1, then

Separate the real and imaginary parts of frac((cosalpha+isinalpha)(cosbeta+isinbeta))((cotgamma+i)(1+itangamma))

If x=3sinalphacosbeta, y=3sinalphasinbeta and z= 3cosalpha then (x-y)^2+(y-z)^2+(z-x)^2+(x+y+z)^2=