Five less than three times a certain number is:
a)3x-5
b)3x+5
c)5x+3
d)5x-3
Solution:three times a number=3x
5 less than 3 times a number: =3x-5
The equation x4-49x2+36x+252=0 is called ………… equation:
a)Quadratic
b)Linear
c)cubic
d)quartic
Each complex cube root of unity is ………… of the other
a) equal
b)less
c) greater
d)reciprocal
A system of equations having a common solution is called a system of…….equations.
a) synthetic
b) algebraic
c) simultaneous
d) None of these
Complex cube roots of unity are:
a) 1,w
b)1,-w
c)w,w2
d) all of these
Each complex cube root of unity is ………… of the other
a) equal
b)less
c)multiple
d)square
