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यदि बिंदु (2-x, 2, 2), (2, 2-y, 2) और (2...

यदि बिंदु (2-x, 2, 2), (2, 2-y, 2) और (2, 2, 2-z) समतलीय हैं तो सिद्ध करें 2/x+2/y+2/z=1 | 1...

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