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KCET2008MathematicsTrigonometric Equations

The number of solutions for the equation 2 x+ 4 x=2 is

Options

  1. A0
  2. B1
  3. C2

Correct answer

A. 0

Step-by-step solution

Given, 2 x+ 4 x=2 array ll & 2 x+1-2 ² 2 x=2 & 2 ² 2 x- 2 x+1=0 array Now, Discriminant, D =(-1)²-4 2 1=-7 < 0 Hence, it is an imaginary equation, so the real roots does not exist.

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