The value of $${{1}\over 1+\sqrt { 2} + \sqrt { 3}}+{{1}\over 1-\sqrt { 2} + \sqrt { 3}} $$ is

What will come in the place of question mark (?) in the following question?

  $$?=5\sqrt{ \left(243 \right)^2}$$

The ratio of the square of a number and the inverse of its cube is 243/16807. what is the number?

Which of the following quadratic equations has real roots?

√6+√6+√6+… is equal to –

Find the square root of (272² - 128²).

Given that √4096 = 64, the value of √4096 + √40.96 +√0.004096 is-

√60+√10+√36=?