Mathematics Tes...

If 2tan⁻¹x(cos x)=tan⁻¹(2cosecx) then x equals

The function f(x)=(9−x²)² increasing in

The coefficients of 5th, 6thand 7thterms in the expansion of (1+x)nare in AP, then n =

The mean and standard deviation of a binomial variate X are 4 and √3 respectively. Then, P(X≥1) is

A ladder 5 metre long leans against a vertical wall. The bottom of the ladder is 3 metre from the wall. If the bottom of the ladder is pulled 5 metre farther from the wall, how much does the top of the ladder slide down the wall

If y=sec(tan⁻¹x),y=sec⁡(tan^-1⁡x), then dy / dx is equal to

The degree of the equation e^x+sin(dy / dx)=3 is..........

Two dice are thrown nn times in succession. The probability of obtaining a double six at least once, is

A die is tossed 5 times. Getting an odd number is considered a success. Then the variance of distribution of success is