" If "alpha=(z)/(2)," then "|a|" is equal to : "

If alpha=(z)/(bar(z)), then | alpha| equals

If z=1+i tan alpha where pi lt alpha lt(3pi)/(2), then what is |z| equal to ?

If alpha=(z)/(bar(z)), then | alpha|

If alpha=x(a xxb)+y(b xxc)+z(cxxa) and [abc]=(1)/(8) , then x+y+z is equal to

Let (z-alpha)/(z+alpha) is purely imaginary and |z|=2, alpha in RR then alpha is equal to (A) 2 (B) 1 (C) sqrt2 (D) sqrt3

Let (z-alpha)/(z+alpha) is purely imaginary and |z|=2, alpha in RR then alpha is equal to (A) 2 (B) 1 (C) sqrt2 (D) sqrt3

If A=[(alpha, 2),(2, alpha)] and |A^(3)|=27 then alpha is equal to

If alpha" and "beta are complex cube roots of unity and x=a alpha+ b beta, y= a+b, z= a beta+b alpha , then xyz is equal to

Let alpha, beta be ral roots of the quadratic equation x ^(2)+kx+ (k^(2) +2k-4) =0, then the minimum value of alpha ^(z)+beta ^(z) is equal to :