" Find the values of "a" and "b," if "(sqrt(11)-sqrt(7))/(sqrt(11)+sqrt(7))=a-b sqrt(77)

Evaluate : (sqrt(11)-sqrt(7))/(sqrt(11)+sqrt(7))

Find the value of a and b if (2+5sqrt(7))/(2-5sqrt(7))=(a+sqrt(7)b)

Find the value of a and b . (sqrt11 - sqrt7 ) / (sqrt 11 + sqrt 7) = a - b sqrt 77 (i) a = 9/2 , b = 1/2 (ii) a = 2/9, b = 2/3 (iii) a = 2/5, b = 1/2 (iv) a = 9/2, b =5/2

In each of the following determine rational number a and b:(sqrt(11)-sqrt(7))/(sqrt(11)+sqrt(7))=a-b sqrt(77) (ii) (4+3sqrt(5))/(4-3sqrt(5))=a+b sqrt(5)

In each of the following determine rational number a\ a n d\ b : (i)\ (sqrt(11)-sqrt(7))/(sqrt(11)+\ sqrt(7))=a-bsqrt(77) (ii)\ (4+3sqrt(5))/(4-3sqrt(5))=a+bsqrt(5)

If a and b are rational numbers and (sqrt(11)-sqrt(7))/(sqrt(11) +sqrt(7))=a - b sqrt(77) . find the value of a and b.

Find the value of a and b if (sqrt7-2)/(sqrt7+2)=asqrt7+b

(3+sqrt(7))/(3-sqrt(7))=a+b sqrt(7)

Find the values of a and b in each of the (sqrt(7)-2)/(sqrt(7)+2)= a sqrt(7)+b

(sqrt(7)+1)/(sqrt(7)-1)-(sqrt(7)-1)/(sqrt(7)+1)=a+b sqrt(7)