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10th Class Mathematics Chapter 2 Theory of Quadratic Equations English Medium KPK Boards Online MCQ's MCQs With Answers
Question # 1
The nature of roots in equation 7x
2
+8x+1=0 is:
Choose an answer
Rational and unequal
Irrational and unequal
Rationaland equal
Irrationaland equal
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Question # 2
Roots of following equation are: 9x
2
-4x+1=0:
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Real, Equal
Real, Unequal
Imaginary
Irrational
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Question # 3
The product of three cube roots of unity is:
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Zero
Four
Two
One
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Question # 4
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Question # 5
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Question # 6
Find k, if the roots are equal in (k+3)x
2
-2(k+1)x-(k+1)=0:
Choose an answer
2, -1
-2,-1
-2,1
2,1
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Question # 7
The discriminant of x
2
+8x+16=0:
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4
3
2
0
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Question # 8
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Question # 9
The value of
i
is equal to:
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Question # 10
The some of cube roots of unity is:
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Zero
One
Two
Three
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Question # 11
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Question # 12
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Question # 13
The discriminant of 2x
2
-7x+1= 0 is:
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41
45
43
47
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Question # 14
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1
0
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Question # 15
If (x+1)(7x+1) = 0 then x is equal to:
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Question # 16
Sum of the roots =
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Question # 17
Sum of the roots of the equation 3x
2
-5x+7=0:
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5+3
5
3
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Question # 18
Choose an answer
9
7
5
3
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Question # 19
Each of the complex cube root of unity is:
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The square of the other
The half of the other
The cube of the other
Equal to each other
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Question # 20
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Question # 21
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1
-1
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Question # 22
The nature of roots depends on the value of:
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-b+4ac
b
2
+4c
b
2
-4ac
-b+4ac
2
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