CBSE  /  Class 12  /  Maths  /  Inverse Trigonometric Functions

  • 1. 
    The value of sin (2 tan(.75)) is equal to

  • .75
  • 1.5
  • .96
  • sin 1.5

  • 2. 
    The value of cos (cos\(\frac{3π}{2}\)) is equal to

  • \(\frac{π}{2}\)
  • \(\frac{3π}{2}\)
  • \(\frac{5π}{2}\)
  • –\(\frac{7π}{2}\)

  • 3. 
    The value of expression 2 sec 2 + sin(\(\frac{1}{2}\)) is

  • \(\frac{π}{6}\)
  • \(\frac{5π}{6}\)
  • \(\frac{7π}{6}\)
  • 1

  • 4. 
    The value of sin [cos

  • \(\frac{25}{24}\)
  • \(\frac{25}{7}\)
  • \(\frac{24}{25}\)
  • \(\frac{7}{24}\)

  • 5. 
    The number of real solution of the equation is \(\sqrt{1+cos 2x}\) = √2 cos (cos x) in [\(\frac{π}{2}\), π] is

  • 0
  • 1
  • 2
  • None of these

  • 6. 
    If cos x > sin x, then

  • \(\frac{1}{√2}\) < x ≤ 1
  • 0 ≤ x < \(\frac{1}{√2}\)
  • -1 ≤ x < \(\frac{1}{√2}\) (d) x > 0

  • 7. 
    sin(\(\frac{-1}{2}\))

  • \(\frac{π}{3}\)
  • –\(\frac{π}{3}\)
  • \(\frac{π}{6}\)
  • –\(\frac{π}{6}\)

  • 8. 
    sec(\(\frac{-2}{√3}\))

  • \(\frac{π}{6}\)
  • \(\frac{π}{3}\)
  • \(\frac{5π}{6}\)
  • –\(\frac{2π}{3}\)

  • 9. 
    cos(\(\frac{1}{2}\))

  • –\(\frac{π}{3}\)
  • \(\frac{π}{3}\)
  • \(\frac{π}{2}\)
  • \(\frac{2π}{3}\)

  • 10. 
    cosec(\(\frac{-2}{√3}\))

  • –\(\frac{π}{3}\)
  • \(\frac{π}{3}\)
  • \(\frac{π}{2}\)
  • –\(\frac{π}{2}\)
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