The number of solution of `2x+y=4,x-2y=2,3x+5y=6` is (A) zero (B) one (C) two (D) infinitely many

Number of triplets of a,b & for which the system of equations,ax-by=2a-b and (c+1)x+cy=10-a+3b has infinitely many solutions and x=1.y=3 one of the solutions,is: (A) exactly one (B) exactly two (C) exactly three (D) infinitely many

The pair of equations 2x-5y+4=0 and 2x+y-8=0 has (a) a unique solution (c) infinitely many solutions (b) exactly two solutions (d) no solution

The pair of equations x+2y+5=0 and -3x-6y+1=0 has (a) a unique solution (c) infinitely many solutions(d) no solution (b) exactly two solutions

The equation 2x+y+z=0, x+y+z=1, 4x+3y+3z=2 have (A) no solution (B) only one solution (C) infinitely many solutions (D) none of these

If xy=2(x+y),x<=y and x,y in N, then the number of solutions of the equation are a. two b.three c.no solution d.infinitely many solutions

How many linear equations are satisfied by x=2 and y=-3? only one (b) Two ( c ) three (d) infinitely many

The equation pi^(x)=-2x^(2)+6x-9 has (A) no solution (B) one solution (C) two solutions (D) infinite solutions

The system of equations 3x+y-z=0, 5x+2y-3z=0, 15x+6y-9z=5 has (A) no solution (B) a unique solution (C) two distinct solutions (D) infinitely many solutions

The equation 3cos x+4sin x=6 has how many solutions (A) Finite (B) Infinite (C) One (D) Zero

If 2x+3y=5 and 3x+2y=10 then x-y= (a) 3 (b) 4 (c) 5 (d) 6