The solution of the equation `(2/3)x+1`=`7/3` is:
(a) 2
(b) 3
(c) -2
(d) -3

The number of real solutions of the equation |x^(2)|-3|x|+2=0 is (a) 3 (b) 4 (c) 1 (d) 3.

The number solution of the equation sgn(x^2)=|x-2| is (a)1 (b) 0 (c) 2 (d) 3

Number of distinct real solutions of the equation x^(2)+((x)/(x-1))^(2)=8 is (a) 1 (b) 2 (c)3 (d)4

The number solution of the equation sgn(x^2)=|x-2| is 1 (b) 0 (c) 2 (d) 3

The number solution of the equation sgn(x^2)=|x-2| is 1 (b) 0 (c) 2 (d) 3

The number of solutions of equation tan^(-1)2x+tan^(-1)3x=pi/4 is (a) 2 (b) 3 (c) 1 (d) none of these

The number of solutions of the equation tan^(-1)(1+x)+tan^(-1)(1-x)=pi/2 is 2 (b) 3 (c) 1 (d) 0

The number of solutions of the equation cot(sin x+3)=1, in [0,3pi] is 0 (b) 1 (c) 4 (d) 2

The number of solutions of te equation |2x^2-5x+3|+x-1=0 is (A) 1 (B) 2 (C) 0 (D) infinite

The solution of the equation sin^3x+sinxcosx+cos^3x=1 is (n∈N) (a) 2npi (b) (4n+1)pi/2 (c) (2n+1)pi (d) None of these