G10 Math Ch1-Ch-5
Authored by Rizwan Allahditta
Mathematics
10th Grade
Used 1+ times
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(i) If a, /3 are the roots of 3x^2 + Sx - 2 = 0, then a+ /3 is:
(a) ¾
(b) -¾
(c) -i
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(ii) If a, /J are the roots of 7x^2 -x + 4 = 0, then a/J is:
(a) l
(b) -1
(c) i
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(iii) Roots of the equation 4x^2 - Sx + 2 = 0 are:
(a) irrational
(b) imaginary
(c) rational
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(iv) Cube roots of -1 are:
(a) -1, -co, -CO2
(b) -1, CO, -CO2
(c) -1, -co, co2
(d) 1, -co, -CO2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(v) Sum of the cube roots of unity is:
(a) 0
(b) 1
(c) -1
(d) 3
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(vi) Product of cube roots of unity is:
(a) 0
(b) 1
(c) -1
(d) 3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(vii) If b^2 - 4ac < 0, then the roots of ax^2 +bx+ c = 0 are:
(a) irrational
(b) rational
(c) imaginary
(d) none of these
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