96 111 131 ? 186 221
96 + 15 = 111 111 + 20 = 131 131 + 25 = 156 156 + 30 = 186 186 + 35 = 221
If θ is a positive acute angle and cos² θ + cos⁴θ = 1, then the value of tan²θ + tan⁴θ is?
Evaluate, tan 17° tan 32° + tan 32° tan 41° + tan 41° tan 17° =?
Find the value of `1/2` cosec 10 - `2/(cosec 70)` ?
If 2y . cos θ - x . sin θ = 0 and 2x . sec θ - y . cosec θ = 3, what is the value of x² + 4y²?
cos A (sec A – cos A) (cot A + tan A) = ?
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
The maximum value of 15 sin2 θ + 8 cos2 θ is