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Question

The area of the parallelogram whose adjacent sides are a with minus on top text  and  end text stack b with not stretchy bar on top with blank on top is 2 square root of 10 sq. units. If stack a with minus on top equals 3 stack i with minus on top plus 2 stack j with minus on top plus stack k with minus on top then stack b with minus on top equals

  1. 2 stack i with minus on top plus 3 stack j with minus on top plus stack k with minus on top    
  2. stack i with minus on top plus stack j with minus on top plus 2 stack k with minus on top    
  3. 3 stack i with minus on top plus 3 stack j with minus on top plus stack k with minus on top    
  4. 3 stack i with minus on top plus stack k with minus on top    

The correct answer is: 3 stack i with minus on top plus stack k with minus on top


    STEP BY STEP SOLUTION
    The area of the parallelogram whose adjacent sides are a with minus on top text  and  end text stack b with not stretchy bar on top with blank on top is 2 square root of 10 sq. units. If stack a with minus on top equals 3 stack i with minus on top plus 2 stack j with minus on top plus stack k with minus on top
    then stack b with minus on top equals text Area of the parallelogram  end text equals vertical line stack a with minus on top cross times stack b with minus on top vertical line text  . Verify option end text
    3 stack i with minus on top plus stack k with minus on top

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