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MHT CET202019 Oct 2020Morning ShiftMathematicsTrigonometric EquationsActual

The principal solutions of 2 x= -1 2 are

Options

  1. Ax= -2 3 , x= 4 3
  2. Bx= 3 , x= 2 3
  3. Cx= - 3 , x= 5 6
  4. Dx= 3 , x= 7 6

Correct answer

B. x= 3 , x= 2 3

Step-by-step solution

(B) aligned & 2 x= -1 2 & -1 2 = ( - 3 )- ( + 3 ) -1 2 - 2 3 - 4 3 & 2 x= 2 3 or 2 x= 4 3 x= 3 or 2 3 aligned

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