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KCET2017MathematicsApplication of Derivatives

If ( n 12 = n 8 ), then ( n ) is equal to

Options

  1. A( 26 )
  2. B( 12 )
  3. C( 06 )
  4. D( 20 )

Correct answer

D. ( 20 )

Step-by-step solution

Given that n 12 = n 8 We know that n r = n n-r Here, r=12 and n-r=8 So, n=12+8=20

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