Question
Simplify the following expression:
(164-1)/17×15× (28+1)Solution
a=16 and b =1 (a4-b4) = (a²+b²) (a+b) (a-b) ((16)4 – 14)/17×15× (28+1) = ((16)2 +1) (16+1) (16-1) / 17×15× (28+1) = ((24)2+1) ×17×15 /17×15× (28+1) = (28+1)/ (28+1) =1.
The minimum value of 25 sin2 θ + 16 cos2 θ is
- If 2cosec 2 A – cot 2 A = 5 and 0 o < A < 90 o , then find the value of ‘A’.
- If sec 2P = sin² 60⁰ + sec 60⁰ - cos² 30⁰, then determine the value of (√3tan P + cot² P)
(tan 5x - tan 3x - tan 2x) = ?
If cot8A = tan(A+8˚), find the value of A? Given that 8A and A+8 are acute angles.
If (3cos A - sin A) = 2 cos (90° - A), then find the value of cot A.
Two points P and Q are at the distance of x and y (where y > x) respectively from the base of a building and on a straight line. If the angles of elevat...
If sec x + tan x = 11 then find secx?