If x = $2+ \sqrt{3}$ , then what is the value of $\sqrt{2x} +\frac{1}{\sqrt{2x}}$ ?
1). $2\sqrt{3}$
2). $3\sqrt{3}$
3). $\frac{(3\sqrt{3} 1)}{2}$
4). $2\sqrt{3} 1$
1. If xy = r, xz = r2, yz = r3, x + y + z = 13 and x2 + y2 + z2 = 91, then find z/y.
2. If √($cosec^{2}A$ - 1) = x, then the value of x is
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5. IF $a^{2}+ab^{2}+c^{2}$= 83 and a + b + c = 15 then the value of ab + bc + ca is