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Mathematics, 13.10.2019 11:30 Ellem22

Awoman stands at a horizontal distance \"x\" from a mountain and measures the angel of elevation of the mountaintop above the horizontal as \"θ.\" after walking a distance \"d\" closer to the mountain on ground level, she finds the angel to be \"φ.\" find a general equation for the height \"y\" of the mountain in terms of \"d\

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