Identity3

Important Identity -(a^(3)+b^(3)+c^(3)-3abc)=(a+b+c)(a^(2)+b^(2)+c^(2)-ab-bc-ac)

Using Identity find (i)((3)/(2)(m)+(2)/(3)(n))((3)/(2)(m)-(2)/(3)(n))(ii)983^(2)-17^(2)(iii)194xx206

If x=3 and y=-1, find the values of each of the using identity: ((3)/(x)-(x)/(3))((x^(2))/(9)+(9)/(x^(2))+1)

Find the expansion of the using suitable identity. (3x +7y) (3x - 7y)

Evaluate by using suitable identity: (997)^(3) .

If I_(3) is identity matrix of order 3, then I_(3)^(-1)=

Expand using suitable identity: (x + 3) (x + 7)