" 7."(sqrt(5))^(-3)(sqrt(2))^(-3)quad " 8."quad (x

(2sqrt(7))/(sqrt(5)-sqrt(3))

(3)/(sqrt(8)-sqrt(2)+sqrt(5))

Simplify: ((sqrt(2))/(5))^(8)-:((sqrt(2))/(5))^(13) (ii) ((5^(-1)x7^(2))/(5^(2)x7^(-7)))^((1)/(2))x((5^(-2)x7^(3))/(5^(3)x7^(-5)))^(-(5)/(2))

The solution of the equation (3+2sqrt2)^(x^2-8)+(3+2sqrt2)^(8-x^2)=6 is equal to a) 3 pm 2 sqrt2 b) pm 1 c) pm 7,pm sqrt3 d) pm 3, pm sqrt7

If x=(sqrt(5)+sqrt(3))/(sqrt(5)-sqrt(3)) and y=(sqrt(5)-sqrt(3))/(sqrt(5)+sqrt(2)), then x+y+xy=9(b)5(c)17(d)7, then

If x=(sqrt(5)+sqrt(3))/(sqrt(5)-sqrt(3)) and y=(sqrt(5)-sqrt(3))/(sqrt(5)+sqrt(3)), then (x+y) equals (a) 2(sqrt(5)+sqrt(3))( b) 2sqrt(15)(c)8 (d) 16

Length of the chord of contact of (2,5) with respect to y^(2)=8x is (3sqrt(41))/(2) (2sqrt(17))/(3) (7sqrt(3))/(5) (5sqrt(3))/(7)

The number of real roots of (7+4sqrt(3))^(|x|- 8)+(7-4sqrt(3))^(|x|-8)=14 is

The number of real roots of (7+4sqrt(3))^(|x|^(-8))+(7-4sqrt(3))^(|x|-8)=14 is