A. {0} B. {2} C. {0,2} D. (0,2) E. {(0,2)} The solution set of the equation 9x2+1=0 is A. {1/3} B. {-1/3} C. {1/3, -1/3} D.∅ E. None of them The solution set of x2-6x+5=4 is A. {(1,5)} B. {2√3+3} C. {3±2√3}

) The total momentum of an …….. system is constant. (25) The product of mass to velocity is ……… . (26) The acceleration due to the gravitational force is called acceleration due to ……… . (27) For free-fall

If 2x2 -5xy + 3y2=0, then x:y=………. A. 2:5 B. 5:3 C. 1:1 D. 1:1 (or) 2:3 E. 3:2 (or) 1:1 If xy = x + y, where x and y are real numbers, then y cannot be A.0 B.1 C. -1 D.2 E. -2 If 3a = 4b = 5c, then 1/a:1/b:1/c