A1
B2
C3
D4
Answer:
Related Questions:
if x+y+z=11x+y+z=11x+y+z=11 and xy+yz+zx=42xy+yz+zx=42xy+yz+zx=42 then the value of x2+y2+z2x^2+y^2+z^2x2+y2+z2 is: