Mathematics Tes...

The minimum value of 16 cot x+9 tan x in (0,π/2) is

If the determinant of a matrix of order 3×3 is formed by using the numbers 1 or -1 and minimum value of the determinant is −λ, then the value of λ is ___ .

The rate of change of surface area of a sphere of radius r when the radius is increasing at the rate of 2cm/sec is proportional to

Let I be an open interval contained in the domain of a real function f′, then f(x) is called strictly decreasing function in I if-

If A is a square matrix of order 3 such that |A|=2 then the value of |(adjA−1)−1| is ___ .

Find the equation of a line passing through (−2,3) and parallel to tangent at origin for the circle x²+y²+x−y=0

Which of the following curves cuts the parabola y²=4ax at right angle

N = 144²⁵⁵ + 192²⁵⁵ then N is divisible by

If A and B are two invertible matrices of the same order, then adj (AB) is equal to

If the equation ${\sin }^{-1}\left(x^2+x+1\right)+{\cos }^{-1}(ax+1)=\frac{\pi }{2}$ has exactly two solutions, then a cannot have the integral value/s

If x+y=12, then minimum value of x²+y²

A particle moves along a curve so that its coordinates at time t are  acceleration at t = 1 is-

Which of the following function is increasing in (0,π/2)