from a point 100 m above a lake the angle of elevation for stationary helicopter is 30 degree and the angle of depression of reflection of the helicopter in the lake is 60 degree find the height of the helicopter [root 3 not to be substituted]
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Here is the answer......
And sorry for the interchangment of steps.....
And sorry for the interchangment of steps.....
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Nemil1:
Thanks
My pleasure
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