If   $$x+{1\over x}=2 $$ then the value of    $$x^{12}-{1\over x^{12}} $$ is

AB is a diameter of a circle with centre O. A tangent is drawn at point A. C is a point on the circle such that BC produced meets the tangent at P. If ∠APC = 62⁰, then find the measure of the minor arc AC.

If p = 99, then value of p(p² + 3p + 3) is

In the given question, two equations numbered l and II are given. Solve both the equations and mark the appropriate answer.

I. x²+ 2x – 15 = 0

II. y²+ 16y + 55 = 0

If (m + 1) = √n + 3, the value of   $${1\over 2}\left({m^3-6m^2+12m-8\over \sqrt { n}}-n \right)  \ $$ is

In ∆PQR, ∠Q=90°. If cot $$R={1\over 3}$$, then what is the value of $${secP(cosR+sinP)\over cosec \ R(sinR-cosecP)} $$?

What sum of money must be given as simple interest for six months at 4% per annum in order to earn 150 interest?

The angles of triangle are in the ratio 3:4:5 the measure of the largest angle of the triangle is