Speed of boat ‘A’ upstream = 60/6 = 10 km/h Speed of boat ‘B’ upstream = 120/4 = 30 km/h Speed of the boat ‘A’ in still water = 10 + 10 = 20 km/h Speed of the boat ‘B’ in still water = 30 + 10 = 40 km/h Required percentage = (40/20) × 100 = 200%
Find the simplified value of the following expression if a = 30o
[(sin2a + cos2a} ÷ seca × sina ÷ cosa]
...If sin A = 3/5 and cos B = 4/5, where A and B are acute angles, find the value of sin(A + B).
The value of (sin 60 º cos 30 º - cos 60 º sin 30 º) is equal to:
The minimum value of 9 cos2 θ + 36 sec2 θ is
If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` +`1/sec q` +`1/sec r` +`1/sec s`
...If sin θ and cos θ are the root of standard Quadratic Equation , then which of the following is true ?
1. a2 + b2 - 2ac =...
If cot A = 12/5, then the value of (sin A + cos A) × sec A is ________.
The angles of elevation of the top of a flagpole from two points A and B on level ground are 30° and 60° respectively. The points A and B are on the s...
