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Manipal MET2021MathematicsVector Algebra

The value of ( a b )^2+( a b )^2 a^2 b^2 is

Options

  1. A0
  2. B1
  3. C2
  4. DNone of these

Correct answer

B. 1

Step-by-step solution

( a b )^2+( a b )^2 a^2 b^2 aligned & = (| a || b | n )^2+(| a | b | )^2 +a^2 b^2 & =a^2 b^2 ( ^2 + ^2 )+a^2 b^2=1 aligned

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