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AB = 9/2 BC = 3 CA = 9/4 Efficiency of AB : BC : CA = 2 : 3 : 4 LCM (Total units) = 36 Now, 2(A + B + C) = 2 (2 + 3 + 4) = 18 To finish the work they will take = 36/18 = 2 hours
From a point "A" on the ground, the angle of elevation to the top of a tower measuring 12 meters in height is 30°. Determine the horizontal distance be...
If sec(2A + B) = 2 and cos(A + B) = (1/√2) , find the value of {sec 2B + tan (A + B) } given that 0o < A, B < 90o
A man is standing at a point 40 meters away from a tower. The angle of elevation of the top of the tower from the point is 45°. After walking 20 meters...
Find the value of sin(θ) if 2sinθ = tanθ, for 0 < θ < 90°.
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...
Find the simplified value of:
If cos4 B - sin4 B =
