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NDA 2014
Exam
NDA
Year
2014
Subject
Mathematics
Chapter
Trigonometric Ratios & Identities

NDA 2014 · Mathematics · Trigonometric Ratios & Identities

Consider the following statements: 1. |x|+ |x| is always positive....

Consider the following statements: 1. sin⁡∣x∣+cos⁡∣x∣\sin |x|+\cos |x| is always positive. 2. sin⁡(x2)+cos⁡(x2)isalwayspositive.Whichoftheabovestatementsis/arecorrect?\sin \left(x^2\right)+\cos \left(x^2\right) is always positive. 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

D. Neither 1 nor 2

Step-by-step solution

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