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P(1,-2,3) ,Q(-1,-2,-3) എന്നീ രണ്ടു ബിന്ദുക്കൾ തന്നിരിക്കുന്നു , O എന്നത് അധര ബിന്ദുവായാൽ PQ+OP|\overset{\rightarrow}{PQ}+\overset{\rightarrow}{OP}|എത്ര ?

A√13

B√14

C√24

D√12

Answer:

B. √14

Read Explanation:

<spanstyle="fontfamily:NotoSansMalayalam;fontsize:12pt">PQ=OQOP</span><span style="font-family: Noto Sans Malayalam; font-size: 12pt">\overset{\rightarrow}{PQ}=\overset{\rightarrow}{OQ}-\overset{\rightarrow}{OP}</span>

<spanstyle="fontfamily:NotoSansMalayalam;fontsize:12pt">PQ+OP=OQ</span><span style="font-family: Noto Sans Malayalam; font-size: 12pt">\overset{\rightarrow}{PQ}+\overset{\rightarrow}{OP}=\overset{\rightarrow}{OQ}</span>

<spanstyle="fontfamily:NotoSansMalayalam;fontsize:12pt">PQ+OP=OQ</span><span style="font-family: Noto Sans Malayalam; font-size: 12pt">\overset{\rightarrow}{|PQ}+\overset{\rightarrow}{OP}|=\overset{\rightarrow}{|OQ|}</span>

1+4+9=14\sqrt{1+4+9}=\sqrt{14}


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