" 1Evaluate: (i) "(2x+3y)^(2)

Evaluate : (i) (2x + 3y) ( 3x +4y)

Find the centre and radius of each of the following circles : (i) (x - 3)^(2) + (y- 1) ^(2) = 9 (ii) (x - (1)/(2) ) ^(2) + ( y + (1)/(3) ) ^(2) = (1)/(16) (iii) (x + 5) ^(2) + ( y- 3 ) ^(2) = 20 (iv) x ^(2) + (y- 1 ) ^(2) = 2

Find the products: (i) (2x+3y)(2x-3y) (ii) (x-1)(x+1)(x^(2)+1)(x^(4)+1)

Find the products: (i) (2x+3y)(2x-3y) (ii) (x-1)(x+1)(x^2+1)(x^4+1)

Find the products: (i) (2x+3y)\ (2x-3y) (ii) (x-1)(x+1)(x^2+1)(x^4+1)

If x=2+3i and y=2-3i then find the values of : (x^(2)+xy+y^(2))/(x^(2)-xy+y^(2))

If x =3 and y=1, then find the values of (i) 3x-2y" "(ii) (22)/(3)x^(2)-(7)/(2)y^(2)

Find each of the following products: (i) (x - 4)(x - 4) (ii) (2x - 3y)(2x - 3y) (iii) ((3)/(4) x - (5)/(6) y) ((3)/(4)x - (5)/(6) y) (iv) (x - (3)/(x)) (x - (3)/(x)) (v) ((1)/(3) x^(2) - 9) ((1)/(3) x^(2) - 9) (vi) ((1)/(2) y^(2) - (1)/(3) y) ((1)/(2) y^(2) - (1)/(3) y)

If x=2+3i and y=2-3i then find the values of (x^(3)-y^(3))/(x^(3)+y^(3))

Find the value of x and y (1)/(2x)+(1)/(3y)=2 (1)/(3x)+(1)/(2y)=(13)/(6)