a=6+2sqrt(3)" than find "a-1

If a=6+2sqrt(3) find the value of a-(1)/(a)

If a = sqrt3, b = (1)/(2) (sqrt6 + sqrt2), and c = sqrt2 , then find angle A

If a = sqrt3, b = (1)/(2) (sqrt6 + sqrt2), and c = sqrt2 , then find angle A

Rationalise the denominator of (sqrt(6)+sqrt(3))/(sqrt(6)-sqrt(3)) and find its value of sqrt(2)=1.414

Given that sqrt(3)=1.732 and sqrt(5)=2.236 then find the value of ((6)/(sqrt(5)-sqrt(3))) .

(sqrt(2)+sqrt(3))/(3sqrt(2)-2sqrt(3))=2-b sqrt(6) find b

(i) If x = (6ab)/(a + b) , find the value of : (x + 3a)/(x - 3a) + (x + 3b)/(x - 3b) . (ii) a = (4sqrt(6))/(sqrt(2) + sqrt(3)) , find the value of : (a + 2sqrt(2))/(a - 2sqrt(2)) + (a + 2sqrt(3))/(a - 2sqrt(3)) .