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AP EAMCET201725 Apr 2017Morning ShiftMathematicsMatricesActual

If A= [ array ccc 1 & 2 & 2 2 & 1 & -2 a & 2 & b array ] is a matrix satisfying the equation A A^T=9 I where I is the identity matrix, then a^2+b^2=

Options

  1. A0
  2. B2
  3. C5
  4. D10

Correct answer

C. 5

Step-by-step solution

No solution. Refer to answer key.

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