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Let A and B denote the statements A: + + =0 B: + + =0 If ( - )+ ( - )+ ( - )=- 3 2 , then

Options

  1. AA is true and B is false
  2. BA is false and B is true
  3. Cboth A and B are true
  4. Dboth A and B are false

Correct answer

C. both A and B are true

Step-by-step solution

aligned & ( - )+ ( - )+ ( - )=- 3 2 & 2[ ( - )+ ( - )+ ( - )]+3=0 & 2[ ( - )+ ( - )+ ( - )]+ ^2 + ^2 + ^2 + ^2 + ^2 + ^2 =0 & ( + + )^2+( + + )^2=0 aligned

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