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After 3 years, Age of B’s father = 45 + 3 = 48 years Age of B = 1/3 × 48 = 16 years Present ages, B = 16 – 3 = 13 years A = 13 + 5 = 18 years C = 18 + 4 = 22 years Required ratio = 13:22
Find the value of sin²50° + sin²40°.
The Value of (sin38˚)/(cos52˚) + (cos12˚)/(sin78˚) - 4cos²60˚ is
From a point on the ground, the angle of elevation of the top of a building is 45°. After walking 10 meters towards the building, the angle of elevatio...
If acos 3 θ + 3asin 2 θcosθ = m and asin 3 θ + 3asinθcos 2 θ = n, then find the value of (m + n) ...
If x = r sin A cos B, y = r sin A sin B and z = r cos A, then find x² + y² + z².
sin2 9 ° + sin2 10 ° + sin2 11 ° + sin2 12 ° + ……… + sin2 81 ° = ?
...Find the value of sin265o + sin225o + cos235o + cos255o.
...If tanθ = x then find the value of cos 2θ?
(tan 5x - tan 3x - tan 2x) = ?