If one root of the equation ax2 + bx + c = 0 be n times the other root, then
Let n(U) = 700, n(A) = 200, n(B) = 300 and n(A ∩ B) = 100,
Then n(Ac∩Bc) =
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In a ΔABC, a = 13 cm, b = 12 cm and c = 5 cm. The distance of A from BC is
The lengths of sides of a triangle are in the ratio 5 : 12 : 13 and its area is 270 cm2. The respective lengths of sides of the triangle (in cm) are
If the mean of a binomial distribution is 25, then its standard deviation lies in the interval
The solution of the equation x2 dy/dx = x2 + xy + y2 is
Assuming that f is continuous everywhere, (1/c) is equal to
The equation of the normal to the ellipse x2/a2 + y2/b2 = 1 at the positive end of the latus rectum is
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