If `x=a+b i` is a complex number such that `x^2=3+4ia d nx^3=2+1i ,w h e r ei=sqrt(-1),t h e n(a+b)` equal to ______.

If x=a+bi is a complex number such that x^(2)=3+4i and x^(3)=2+11i, where i=sqrt(-1, then (a+b) equal to )

If n is a whole number such that n+n=n ,\ t h e n\ n=? (a) 1 (b) 2 (c) 3 (d) none of these

If a : b=3:4, b : c4:7, t h e n(a+b+c)/c is equal to 1 b. 2 c. 3 d. 7

If o+ is an operation such that a+b={2a , w h e n a > b a+b , w h e n a

True or false The equation 2x^2+3x+1=0 has an irrational root. If a

Let A and B be two sets such that n(A)=3 a n d n(B)=2. if (x ,1), (y ,2), (z ,1)a r e in AxxB , find A a n d B , w h e r e x , y , z are distinct elements.

If S is the sample space and P(A)=1/3P\ (B)a n d\ S=AuuB ,\ w h e r e\ A\ a n d\ B are two mutually exclusive events then P(A)= 1//4 b. 1//2 c. 3//4 d. 3//8

If x , y >0,(log)_y x+(log)_x y=(10)/3 a n d x y=144 , t h e n(x+y)/2=sqrt("N")" w h e r e N" is a natural number, find the value of Ndot

If the median of the scores 1, 2, x , 4, 5 (w h e r e 1<2