sqrt(7-30sqrt(-2))

Rationailise the denominatios (1)/(sqrt(7)+sqrt(2))-(sqrt(7)+sqrt(2))/(sqrt(7)-sqrt(2))

(1)/(sqrt(7)-sqrt(2))-(1)/(sqrt(7)+sqrt(2))=

Simplify (sqrt(7)+sqrt(2))(sqrt(7)-sqrt(2))

Evaluate (sqrt(7)-sqrt(2))(sqrt(5)+sqrt(2))

a=3(sqrt(8+2sqrt(7))-sqrt(8-2sqrt(7))),b=sqrt(((42)(30)+(36))) then the value of log _(a)b is equal to

show that (sqrt(7)-sqrt(5))/(sqrt(7)+sqrt(5))times(sqrt(7)-sqrt(5))/(sqrt(7)-sqrt(5)) =frac{(sqrt(7)-sqrt(5))^(2)}{2}

sqrt(7+2sqrt(6))+sqrt(7-2sqrt(6)) =______.

(sqrt(7)+2sqrt(3))(sqrt(7)-2sqrt(3))

Evaluate (sqrt(7)+sqrt(2))+(sqrt(4)+sqrt(7))