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एक सदिश जिसका परिमाण 7 इकाई है जो कि सद...

एक सदिश जिसका परिमाण 7 इकाई है जो कि सदिशों `veca=2hati-3hatj-2hatk` और `vecb=-hati+2hatj+hatk` के परिणामी के समान्तर है , तब -

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