a man standing on the bank of a river observes that the angle of elevation of a tree on the opposite bank is 60 degree when he moves 50 metre away from the bank he finds the angle of elevation to be 30 degree calculate the width of the river and the height of the tree
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A nitrogenous waste produced in liver.
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A nitrogenous waste produced in liver.
A nitrogenous waste produced in liver.A nitrogenous waste produced in liver.
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