Find the multiplication of :

`( a - b )( a - b )`

If a ne 0 , the multiplicative inverse of (a)/(b) is (b)/(a) .

Solve for x and y by cross multiplication method x + y = a + b ax – by = a^(2) – b^(2)

3.Find first three common multiples of : (a) 6 and 8 (b) 12 and 18

Solve the following system of equations by method of cross- multiplication: x(a-b+(ab)/(a-b))=y(a+b-(ab)/(a+b)),quad x+y=2a^(2)

Solve by cross multiplication: (a-b)x+(a+b)y=2a-b(a-b)x-(a+b)y=ab

If multiplicative inverse of (1 + i) is a + ib then (a + b) equals to

Solve the following equation by cross- multiplication method: (a)/(x)-(b)/(y)=0 and a(b^(2))/(x)+a(b^(2))/(y)=a^(2)+b^(2)

Verify the associative property of addition and multiplication if a=358, b=962 and c=142 .

The sum of the multiplication table of natural number 'n' is given by 55 xx n . Find the sum of (a) Table of 7 (b) Table of 10 (c) Table of 19