Plus 2 - Mathematics Important Questions

Questions 13-19 are provided in this post for practice. If you want more +2 sample one mark questions, refer to the 'Related Post' section below.

13) If is one root of the equation , then the other root is

a)

b)

c)

d)



14) Polynomial equation P(x) = 0 admits conjugate pairs of imaginary roots only if the coefficients are

a) imaginary

b) complex

c) real

d) either real or complex



15) The line is a tangent to the parabola then c is:

a) -1

b) –2

c) 4

d) -4.



16) The rank of the diagonal matrix

is:

a) 0

b) 2

c) 3

d) 5



17) If A is scalar matrix with scalar k , of order 3, then is:

a)

b)

c)

d)



18) In a system of three linear non-homogenous equations with three unknowns, if and , and then the system has:

a) unique solution

b) two solutions

c) infinitely many solutions

d) no solution.



19) In the system of three linear equations with three unknowns, in the non-homogenous system, ; then the system

a) has unique solution

b) reduces to two equations and has infinitely many solutions

c) reduces to a single equation and has infinitely many solutions

d) is inconsistent.

Check here for questions 1-6 and 7-12 .