Which section of the Himalayas extends between the

If cos(A - B) =√3/2and cot(A + B) = 1/√3, where A - B and A + B are acute angles, then (2A - 3B) is equal to:

If x² – 5x + 1 = 0, then find the value of {x² + (1/x²)}.

If a² + c² + 17 = 2(a - 8b - 2c²), then what is the value of (a³ + b³ + c³)?

if √1+x/121 = 13/11 then find the value of x.

If x = 19, then the value of x⁵ - 20x⁴ + 20x³ - 20x² + 20x - 1 is

? + (35)² = (130)² - (45)² - 2850

Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1^st Part at 4% per annum for 3 years, Simple Interest on 2^nd

Find the value of

(1 -  `1/(p+1)` ) + (1 - `2/(p+1)`  ) + (1 - `3/(p+1)`  ) + ........................... + (1 -  `p/(p+1)` )