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समतल का सदिश समीकरण जिसका कार्तीय समीकरण ` 5x- 7y +2z =4` है|A. ` vecr (5hati + 7hatj +2hatk ) =4`B. ` vec r ( 5hati -7hatj + 2hatk ) =4`C. ` vecr (5hati -7hatj -2hatk ) =4`D. ` vecr (5hati -7hatj -2hatk ) - =4`

Answer» Correct Answer - B


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