© examsiri.com
Question : 87 of 100
Marks:
+1,
-0
Solution:
=‌+2‌+λ‌,=3‌−5‌−λ‌,⋅=7 ×−×= (−)×=0⇒(−) is paralleled to
−=µ , where
µ is a scalar
−2+7+2λ=µ⋅Now
â‹…=7 gives
2λ2+12=7µAnd
⋅=−‌ gives
4λ2+82=43µ µ=2 and
λ2=1 |⋅|=8
© examsiri.com
Go to Question: