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MHT CET202019 Oct 2020Evening ShiftMathematicsContinuity and DifferentiabilityActual

If f(x)= 1- x+ x 1+ x+ x , for x is continuous at x= , then f( )=

Options

  1. A-1
  2. B2
  3. C0
  4. D1

Correct answer

A. -1

Step-by-step solution

(A) f is continuous at x= aligned f( ) &= _ x f(x)= _ x 1- x+ x 1+ x+ x &= _ x - x- x x- x &= - - - = -(-1)-0 -1-0 = 1 -1 =-1 aligned

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