smplify `(7+sqrt(3))/(7-sqrt(3))+(7-sqrt(3))/(7+sqrt(3))`

(3+sqrt(7))/(3-sqrt(7))

Simplify : (5+sqrt3)/(7- 4sqrt3) -(5-sqrt3)/( 7+4sqrt3)

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

sqrt(3)(sqrt(7)-sqrt(3))

Simplify: 7sqrt(3)-29sqrt(3)

(sqrt(5)+sqrt(3))(sqrt(7)-sqrt(3))

(7+3sqrt5)/(7-3sqrt5)=

Simplify (sqrt(7)+sqrt(3))(3-sqrt(3))

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

Find the values of a and b in each of the following : (a)(5+2sqrt3)/(7+4sqrt(3))=a-6sqrt(3)" "(b)(3-sqrt(5))/(3+2sqrt(5))=asqrt(5)-(19)/(11) (c )(sqrt(2)+sqrt(3))/(3sqrt2-2sqrt(3))=2-bsqrt(6)" "(d)(7+sqrt(5))/(7-sqrt(5))-(7-sqrt(5))/(7+sqrt(5))=a+(7)/(11)sqrt(5b)