If A=6i-8j B=-8i+3j C=26i+19j find a&b such that aA+bB+C=0
x component
6a- 8b +26 = 0
y component
-8a + 3 b + 19 = 0
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24 a - 32 b + 104 = 0
-24 a +9 b + 57 = 0
------------------------------- add
- 23 b + 161 = 0
b = 7 etc