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Question : 99 of 160
Marks:
+1,
-0
Solution:
Given that
‌adj‌[]=[] . . . (i)
‌‌ Cofactor of ‌[]‌are‌C11=5,C12=1,C13=−2‌C21=4,C22=1,C23=−2‌C31=−2,C32=0,C33=1‌⇒[]=[]‌On comparing the corresponding elements, we get
‌a‌=4,b=1∴‌[]‌=[]
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