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Question : 32 of 160
Marks:
+1,
-0
Solution:
Consider the vectors,
a=4i+3j and
aâ‹…b=0 Then
‌=1and
=2 So
b=3i−4j Let consider,
c=xi+yj Then,
‌=1 4x+4y=5‌‌‌‌‌⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅(I) ‌ From, ‌‌=2 3x−4y=10‌‌‌‌‌⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅(II) Solve equation (I) and (II),
x=2,y=−1 This implies,
c=2i−j
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