kwilson5328
29.07.2020 •
Mathematics
An observer on the ground is x meters from the base of the launch pad of a rocket, which is at the same level observer. A few seconds after the rocket takes off vertically,the observer sees its tip at an angle of q°from horizontal. How far above the ground is the tip of the rocket at that instant? Assume that the ground is level
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Ответ:
3( 7 + x ) = 21 + 3x