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If cos (θ – α), cos θ, cos(θ + α) are in HP, then cos θ sec (α/2)is equal to (a) -1 (b) − 2 (c) 2 (d) 2 ...
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If cos (θ – α), cos θ, cos(θ + α) are in HP, then cos θ sec (α/2)is equal to (a) -1 (b) − 2 (c) 2 (d) 2 ...
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A boy throws a ball at an angle 450 with the horizontal at t = 0 at origin. Path of the ball follows the trajectory y = x – 5x2. The boy start running with a constant velocity 1 m/s along x-axis at t = 0. Take g = 10 m/s2. ...
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A boy throws a ball at an angle 450 with the horizontal at t = 0 at origin. Path of the ball follows the trajectory y = x – 5x2. The boy start running with a constant velocity 1 m/s along x-axis at t = 0. Take g = 10 m/s2. ...
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A boy throws a ball at an angle 450 with the horizontal at t = 0 at origin. Path of the ball follows the trajectory y = x – 5x2. The boy start running with a constant velocity 1 m/s along x-axis at t = 0. Take g = 10 m/s2. ...
