Maths - Online Test

Q1.

If 8 and 2 are the roots of x2 +ax+c = 0 and 3, 3 are the roots of x2 +dx+b = 0, then the roots

of the equation x2 + ax + b = 0 are
Answer : Option C
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Q2. If pv = 81, then dp/dv at v = 9 is
Answer : Option B
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Q3. If f(θ) = |sin θ| + |cosθ| , θ R, then f(θ) is in the interval
Answer : Option B
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Q4.  ∫ x2 cos x dx is
Answer : Option A
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Q5. If 10 lines are drawn in a plane such that no two of them are parallel and no three are concurrent, then the total number of points of intersection are
Answer : Option A
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Q6. A number x is chosen at random from the first 100 natural numbers. Let A be the event of numbers which satisfies [(x − 10)(x − 50)] / [x − 30 ] ≥ 0 , then P ( A) is
Answer : Option C
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Q7. The sum up to n terms of the series √2 + √8 + √18 + √32 +……….is
Answer : Option C
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Q8. The point on the line 2x - 3y = 5 is equidistance from (1,2) and (3, 4) is
Answer : Option B
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Q9. If   is
Answer : Option D
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Q10. If  | | = 60,| | = 40 and | |=46, then || is 
Answer : Option C
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