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Consider a pyramid OPQRS located in the first octant (xge0, yge0, zge0) with O as origin and OP and OR along the X-axis and the Y-axis , respectively. The base OPQRS of the pyramid is a square with OP=3. The point S is directly above the mid point T of diagonal OQ such that TS=3. Then, |
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Answer» <P>the acute angle between OQ and OS is `(pi)/(3)` |
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