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For the following questions answer them individually
If $$x = \frac{\sqrt{3} + \sqrt{2}}{\sqrt{3} - \sqrt{2}}$$, then $$\left(x - \frac{1}{x}\right)^2 =$$
In a division if the divisor, remainder and quotient are respectively 18, 13 and 17, then the dividend is
If the GCD and LCM of two positive integers $$x, y$$ are respectively 18 and 1080, then the remainder when their product $$xy$$ is divided by 49 is
$$\left(1 + \frac{1}{2}\right)\left(1 + \frac{1}{3}\right)\left(1 + \frac{1}{4}\right) + ....... \left(1 + \frac{1}{41}\right) =$$
The difference between the largest and the smallest of the fractions:
$$\frac{5}{6}, \frac{13}{18}, \frac{6}{11}$$ and $$\frac{19}{36}$$ is
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