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MHT CET202312 May 2023Morning ShiftMathematicsTrigonometric EquationsActual

The solution set of 8 ^2 +14 +5=0 , in the interval [0,2 ] , is

Options

  1. A3 , 2 3
  2. B3 , 4 3
  3. C2 3 , 4 3
  4. D2 3 , 5 3

Correct answer

C. 2 3 , 4 3

Step-by-step solution

array ll & 8 ^2 +14 +5=0 & 8 ^2 +10 +4 +5=0 & 2 (4 +5)+1(4 +5)=0 & (2 +1)(4 +5)=0 & = -1 2 or = -5 4 array But = -5 4 is not possible as [-1,1] for all values of . aligned & = -1 2 & 2 3 , 4 3 aligned

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