Mathematics Tes...

Let A and B be two sets in a universal set U. Then,

If the normal at the point (bt₁², 2bt₁) on a parabola meets the parabola again at the point (bt₂², 2bt₂), then

The differential equation whose solution is Ax² + By² = 1, where A and B are arbitrary constants, is of

The volume of a parallelepiped whose sides are given by 

In an experiment with 15 observations on x, the following results were available.

∑x² = 2830, ∑x = 170

One observation, which was 20, was found to be wrong and was replaced by the correct value 30. Then, the corrected variance was

The general solution of sin x - 3 sin 2x + sin 3x = cos x - 3 cos 2x + cos 3x is

The statement p → (q → p) is equivalent to

The function f(x) = x^1/x has a maximum value at