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यदि x^(2) + y^(2) + z^(2) - xy- yz - zx ...

यदि x^(2) + y^(2) + z^(2) - xy- yz - zx = 0, साबित करें कि : x= y = z | 9 | विस्तार | गणित | आईसीएस...

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