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Let A= [ array lll a & h & g h & b & f g & f & c array ] and B= [ array l x y z array ] , then what is A B equal to?

Options

  1. A[ array c a x+h y+g z y z array ]
  2. B[ array c a x+h y+g z h x+b y+f z z array ]
  3. C[ array l a x+h y+g z h x+b y+f z g x+f y+c z array ]
  4. D[ array lll a x+h y+g z & h x+b y+f z & g x+f y+c z array ]

Correct answer

C. [ array l a x+h y+g z h x+b y+f z g x+f y+c z array ]

Step-by-step solution

A B= [ array lll a & h & g h & b & f g & f & c array ] [ array l x y z array ]= [ array l a x+h y+g z h x+b y+f z g x+f y+c z array ]

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