# 10th Class Maths MCQ with Answers Chapter 2

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If for a quadratic equation b2 – 4ac = 205, then roots are …………
Rational
Complex
Irrational
Equal

Roots of the equation 4x2 -4x+1 = 0 are.
Real, equal
Real, Unequal
Irrational
Imaginary

Disc. of x2 -3x + 3 =0 is……………..
12
6
-3
21

If ?, ? are the root of an equation then the standard form of quadratic equation is:
x2+ (?+?) x + (?+?) = 0
x2 – (?+?) x + ?? = 0
x2 – (??) x +?? = 0
x2+ ?? (x) + ?? = 0

Two square roots of unity are.
1,-?
1,?
?,?2
1,-1

1 + ? =_________
1
?2
?2
-?2

The nature of the roots of equation ax2 + bx +c = 0 is determined by.
Synthetic divison
Discriminant
Prouct of the roots
Sum of roots

Roots of the equation 4x3 – 4x +1 = 0 are.
Real unequal
Irrational
Real, Equal
Imaginary

The sum of the roots of a quadratic eqaution is 2 and the sum of the cubes of the roots is 98. The equations is:
x2-2x-15=0
None of these
x2-4x+15=0
x2-2x+15=0

If length and width of rectangle are x and y respectively then which of the following shows perimeter?
2xy
2x -2y
2 (x+y)
(x+y)2

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