In each case, find whether the trinomial is a perfect square or not :
(i) `x^2 + 14 x + 49`

In each case, find whether the trinomial is a perfect square or not : (vi) x^(2) - 4x + 16

In each case, find whether the trinomial is a perfect square or not : (iii) 4x^(2) +4x +1

In each case, find whether the trinomial is a perfect square or not : (v) 16x^(2) - 16 xy + y^(2)

In each case, find whether the trinomial is a perfect square or not : (ii) a^(2) - 10 a + 25

In each case, find whether the trinomial is a perfect square or not : 9b^(2) + 12b +16

Find whether 55 is a perfect square or not?

Find the square of : (i) x + 3y

State in each case, whether the given statement is true or false : If D ={ x: x in W, x lt 4 }, then n(D) = 4.

State in each case, whether the given statement is true or false : { x: x in W, x +5=5} is a singleton set.

In each case given below find the value of x.