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NDA2014MathematicsTrigonometric Ratios & IdentitiesActual

Consider the following statements: 1. If 3 is an acute angle such that 3 = 2 , then the measurement of in radian equals to 10 . 2. One radian is the angle subtended at the centre of a circle by an arc of the same circle whose length is equal to the diameter of that circle. Which of the above statements is/are correct?

Options

  1. A1 only
  2. B2 only
  3. CBoth 1 and 2
  4. DNeither 1 nor 2

Correct answer

A. 1 only

Step-by-step solution

aligned & 3 = 2 & (90^ -3 )= 2 & 90^ -3 =2 & 5 =90^ & =18^ & 180^ = radian & 18^ = 180 18= 10 radian aligned 1 is true. 2 is not true.

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