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KCET2015MathematicsTrigonometric Ratios & Identities

If the operation ( ) is defined by ( a b=a²+b² ) for all real numbers 'a' and 'b', then ( (2 3) ) ( 4= )

Options

  1. A( 181 )
  2. B( 184 )
  3. C( 182 )
  4. D( 185 )

Correct answer

D. ( 185 )

Step-by-step solution

Given that, a b=a²+b² Now, (2 3) 4(2 3)=2²+3²=13(13 4)=13²+4²=185

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