The equation `3^(-1)x-pix-pi/2=0` has one negative solution one positive solution no solution more than one solution

The equation 3cos^(-1)x-pix-pi/2=0 has one negative solution, one positive solution, no solution, more than one solution

The equation 3^(-1)x-pi x-(pi)/(2)=0 has one negative solution one positive solution no solution more than one solution

The equation sqrt(x+1)-sqrt(x-1)=sqrt(4x-1) has a.no solution b.one solution c. two solution d.more than two solutions

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

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

The equation sqrt(x+1)-sqrt(x-1)=sqrt(4x-1) has a. no solution b. one solution c. two solution d. more than two solutions

The pair of linear equations -5x+2y=8 and 2x-5y-3=0 have a)one solution b)two solution c)many solution d)no solution

For x in (0,pi), the equation sinx+2 sin 2x-sin3x=3 has (A)infinitely many solutions (B)three solutions (C)one solution (D)no solution

For x in(0,pi), the equation sin x+2sinx-sin3x=3 has (A)infinitely many solutions (B) three solutions (C)one solution (D)no solution