“ बच्चे बस से स्कूल

If x = 6 + 2√5, then the value of √x - (1/√x)?

If, 4x + y = 10, and 2xy = 8, and 4x > y, then find the value of 64x³ – y³.

If √n + (1/√n) = 6, then find the value of n + (1/n).

If tan x + cot x  = 7, find  tan³ x + cot³ x = ?

If x = (2+√3)/(2-√3), y = (2-√3)/(2+√3)

Then find out the value of (x²+y²-xy)/(x²+y²+xy)

If 112 ÷28 x 2² –12 x 6 ÷ 3 +12 = z, then find the value of z.

if 2^x +3^y =7 and 2^x+2 -3^y+2 =7, then find the value of x and y.

Find the value x² + y², if xy = 13 and x + y = 7.