Taking a, b, c as positive integers, verify the following whether they are identities or not? (a+b) (a - b) =`a^2`-`b^2`

Taking a, b, c as positive integers, verify the following whether they are identities or not? (a-b)^2 = a^2 - 2ab + b^2

Taking a, b, c as positive integers, verify the following whether they are identities or not? (a+b+c)^2 = a^2 + b^2 + c^2 +2ab + 2bc + 2ca.

Expand of the following, using suitable identities : ((a/4 -b/2)-1)^2

If a and b are positive integers then the solution of the equation of the equation ax=b willl always be a

Which of the following does not represent pair of integers (a, b) such that a/b=2 ?

Examine whether the following statements are true or false: { a, b } ⊄ { b, c, a }

In each of the following .state whether A=B or not. A={a,b,c,d}, B={d,c,a,b}

If a, b,c are distinct positive real numbers, then the vlaue of the determinant , |(a,b,c),(b,c,a),(c,a,b)| .