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Jika A = 3 i − 12 j ​ dan B = − 2 i + 8 j ​ , maka C = 3 1 ​ A − 2 1 ​ B adalah ......

Jika  dan , maka  adalah ......

  1. Error converting from MathML to accessible text.   

  2. Error converting from MathML to accessible text.   

  3. Error converting from MathML to accessible text.  

  4. Error converting from MathML to accessible text.   

  5. size 14px 2 blank size 14px i with size 14px hat on top size 14px minus size 14px 8 blank size 14px j with size 14px hat on top  

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size 14px C with size 14px rightwards arrow on top size 14px equals size 14px 1 over size 14px 3 size 14px A with size 14px rightwards arrow on top size 14px minus size 14px 1 over size 14px 2 size 14px B with size 14px rightwards arrow on top size 14px C with size 14px rightwards arrow on top size 14px equals size 14px 1 over size 14px 3 begin mathsize 14px style left parenthesis 3 blank i with hat on top minus 12 blank j with hat on top right parenthesis end style size 14px minus size 14px 1 over size 14px 2 begin mathsize 14px style left parenthesis negative 2 blank i with hat on top plus 8 blank j with hat on top right parenthesis end style size 14px C with size 14px rightwards arrow on top size 14px equals size 14px left parenthesis size 14px i with size 14px hat on top size 14px minus size 14px 4 blank size 14px j with size 14px hat on top size 14px right parenthesis size 14px minus begin mathsize 14px style left parenthesis negative blank i with hat on top plus 4 blank j with hat on top right parenthesis end style size 14px C with size 14px rightwards arrow on top size 14px equals size 14px 2 blank size 14px i with size 14px hat on top size 14px minus size 14px 8 blank size 14px j with size 14px hat on top    

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