The equation `2cos^(-1)x+sin^(-1)x=(11pi)/6` has a. no solution b. only one solution c. two solutions d. three solutions

The equation ((log)_8(8/(x^2)))/(((log)_8x^2))=3 has a. \ no integral solution b. one natural c. \ two real solution d. one irrational solution

The equation |((1+x)^2,(1-x)^2,-(2+x^2)),(2x+1,3x,1-5x),(x+1,2x,2-3x)|+|((1+x)^2,2x+1,x+1),((1-x)^2,3x,2x),(1-2x,3x-2,2x-3)|=0 has has (a) no real solution (b) 4 real solutions (c) two real and two non-real solutions (d) infinite number of solutions, real or non-real

number of solution of the equation |x| = cos x

If the equation 2 cos x + cos 2 lambda x=3 has only one solution , then lambda is

The general solution of 4sin^(4) x + cos^(4) x=1 is

The solution set of sin^(-1)xlecos^(-1)x is _______

Find the solution of cos4x+cos6x=0 .

For which values of k, does the pair of linear equations kx+y=k^(2) and x+ky=1 have (1) no solution ? (2) infinitely many solutions? (3) a unique solution ?

Prove that the equation 2 sin x=|x|+a has no solution for a in ((3sqrt(3)-pi)/3, oo) .

The number of real solutions of tan^(-1)sqrt(x(x+1))+sin^(-1)sqrt(x^2+x+1)=pi/2 is a. z ero b. one c. two d. infinite