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Most Important Selected Qs for JEE AdvancedMathematicsTrigonometry

Let f( )= (1+ 4 6 ) (1+ 4 2 5 ) , then:

Options

  1. Af ( 7 )=25
  2. Bf ( 7 )=-25
  3. Cf ( 2 7 )=9
  4. Df ( 2 7 )=-9

Correct answer

C. f ( 2 7 )=9

Step-by-step solution

f ( 7 )=5 5=25 and f ( 2 7 )=-3(-3)=9

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