Question
Which one of the areas marked (I - VII) represents the
doctors who plays football but do not play Cricketer?ÂSolution
The doctors who plays football but do not play Cricketer can be represented by the area common to the triangle and the circle but outside the square. Such area is marked IV ’.
If 2x = cosec @ and 4/x = cot @ then the value of 2(x ² - 1/x ² ) is
(tan 5x - tan 3x - tan 2x) = ?
If tan 4θ = cot 14θ, then find the value of cos 9θ.
- If sin (a + b) = (√3/2) and cos (a – b) = (√3/2), then find sin a.
If tan θ + cot θ = 2 where 0 < θ < 90 ; find the value of tan17 θ + cot19 θ.
Solve the following trigonometric expression:
- If sin 2 Â A + sin 4 Â A = 1 and cos 2 Â A + cos 4 Â A = 1, then find the value of (sin 4 Â A - cos ...
If (5sinx - cosx) = 2√2sinx, then find the value of 'tanx'
If A, B and C are angles of triangle, then sin2A + sin2B + sin2C– 2cosA cosB cosC
sin2 17˚ + sin2 19˚ + sin2 21˚ + sin2 23˚ + ……… + sin2 77˚ = ?