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If bar(a)=2bari+4barj-5bark,bar(b)=bar(i...

If `bar(a)=2bari+4barj-5bark,bar(b)=bar(i)+bar(j)+bar(k)and bar(c)=bar(j)+2bar(k)` . Find the unit vector in the opposite direction of `bar(a)+bar(b)+bar(c)`.

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Let bar(a) = 2bar(i) +4bar(j)-5bar(k), bar(b) = bar(i)+bar(j)+bar(k), bar(c ) = bar(j)+2bar(k) . Find the unit vector in the opposite direction of a + b + c

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SRISIRI PUBLICATION-QUESTION PAPER -SECTION - C
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