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Question : 33 of 160
Marks:
+1,
-0
Solution:
Given that,
a=−2+3 and
b=2++ ∴‌‌(a×b)=|| =(−2−3)−(1−6)+(1+4) =−5+5+5 Now,
|a×b|=√25+25+25=√75=5√3
∵[abc] is maximum and
|c|=1 ∴c==‌ ==
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