`(4+sqrt(7))` expressed as a perfect square, is equal to `(2+sqrt(7))^2` b. `((sqrt(7))/2+1/2)^2` c. `(sqrt(3)+sqrt(4))^2` d. `{1/2\ (sqrt(7)+1)^2}\ `

(4+sqrt(7)) expressed as a perfect square,is equal to (2+sqrt(7))^(2) b.((sqrt(7))/(2)+(1)/(2))^(2) c.(sqrt(3)+sqrt(4))^(2) d.{(1)/(2)backslash(sqrt(7)+1)^(2)}backslash

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

[(6sqrt (7)) ^ (2) + (6sqrt (7)) ^ (-2)] [(6sqrt (7)) ^ (4) -1+ (6sqrt (7)) ^ (-4)]

If sqrt(7) = 2.646 then (1)/(sqrt(7)) =?

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

(1)/(sqrt(2)+sqrt(5)-sqrt(7))

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

sqrt(6-4sqrt(3)+sqrt(16-8sqrt(3))) is equal to 1-sqrt(3) b.sqrt(3)-1 c.2(2-sqrt(3)) d.2(2+sqrt(3))

(2sqrt2 - sqrt7)/(2sqrt2 + sqrt7)

(1)/(2sqrt(7)+sqrt(5))-(1)/(2sqrt(5)+sqrt(7)) simplify