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KCET2008MathematicsTrigonometric Equations

The general solution of | x|= x is (when n I ) given by

Options

  1. An + 4
  2. B2 n 4
  3. Cn 4
  4. Dn - 4

Correct answer

B. 2 n 4

Step-by-step solution

Given, | x|= x array lr & ² x = ² x & 1- ² x = ² x & 2 ² x =1 array x= 1 2 x=+ 1 2 ( x cannot be negative ) x =2 n 4

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