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MHT CET20244 May 2024Morning ShiftMathematicsTrigonometric Ratios & IdentitiesActual

The value of the expression 3 cosec 20^ - 20^ is equal to

Options

  1. A2
  2. B2 20^ 40^
  3. C4
  4. D4 20^ 40^

Correct answer

C. 4

Step-by-step solution

aligned & 3 cosec 20^ - 20^ & = 3 20^ - 1 20^ & = 3 20^ - 20^ 20^ 20^ & = 4 ( 3 2 20^ - 1 2 20^ ) 2 20^ 20^ & = 4 ( 60^ 20^ - 60^ 20^ ) 40^ & =4 40^ 40^ =4 aligned

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