Who among the following is the author of the book 'The

If a+1/a =9, then a⁵+1/a⁵ is equal to:

If a + (1/a) = 2, then find the value of (a⁵ + a³ + 6)/(7a – 5). 

22% of ‘x’ is equal to 66% of ‘y’, then find the value of x: y.

If 3y-3/y=18 then find the value of y² +1/y²

If AB = x + 3, BC = 2x and AC = 4x − 5, then for what value of ‘x’ does B lie on AC?

Solve for x:

(2x − 1)/3 − (x − 4)/2 = 3

If √b + (1/√b) = 11, then find the value of b + (1/b).

If, 4x² + y² + 12x + 6y + 18 = 0, then find the value of (2x + y)/(y + 6x).

If ( p = 40 - q - r ) and ( pq + r(q + p) = 720 ), then find the value of ( p² + q² + r²).