For the given graphical representation of vector v, estimate a1 and a2 so that 
and calculate 
.
A. a1 = 2, a2 = 9; 
= 9.2
B. a1 = -2, a2 = 9; 
= 9.2
C. a1 = 9, a2 = -2; 
= 9.2
D. a1 = 2 a2 = 9; 
= 85
Answer: B
Mathematics
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