" 21."3y+2(y+2)=13-(2y-5)

Solve for x and y12sin x-2y^(2)=21-8y-5cos x

Group the like terms from the algebraic expressions given: 2x, y, 12xy, 13y^2 , -5x, 18y, -4xy, -2y^2 , 21x^2y , 3x, 3xy, -xy, -y, -6x^2 , -15x^2 .

Simplify : (y^2-3y+2)/(y^2+y-2)div(2y^2-5y+2)/(2y^2+3y-2)

Solve for x and y 12sinx-2y^2=21-8y-5 cosx

Solve for x and y 12sinx-2y^2=21-8y-5 cosx

Identify,in the following expressions,terms which are not constants.Give their numerical coefficients: xy+4,13-y^(2),13-y+5y^(2),4p^(2)q-3pq^(2)+5

Solution of D.E (dy)/(dx)=(2x+5y)/(2y-5x+3) is,if (y(0)=0) (1) x^(2)-y^(2)+5xy-3y=0 (2) x^(2)+y^(2)+5xy-3y=0 (3) x^(2)-y^(2)+5xy+3y=0 (4) x^(2)-y^(2)-5xy-3y=0

2x-3y=9,2x+y=13

" (3) "2x-3y=9;2x+y=13