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यदि a,b,c तीन समतलीय नहीं है। इस प्रकार `r_(1)=a-b+c,r_(2)=b+c-a,r_(3)=c+a+b,r=2a-3b+4c` यदि `r=p_(1)r_(1)+p_(2)r_(2)+p_(3)r_(3)`, तब-

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यदि a,b,c तीन समतलीय नहीं है। इस प्रकार `r_(1)=a-b+c,r_(2)=b+c-a,r_(3)=c+a+b,r=2a-3b+4c` यदि `r=p_(1)r_(1)+p_(2)r_(2)+p_(3)r_(3)`, तब-
A. `p_(1)=7`
B. `p_(1)+p_(3)=3`
C. `p_(1)+p_(2)+p_(3)=4`
D. `p_(3)+p_(2)=3`
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Correct Answer - b,c
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