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Home Aptitude Simplification Comments

  • Question
  • If cos 240° = x, then value of x is


  • Options
  • A. -1/?2
  • B. -?3/2
  • C. 1/2
  • D. -1/2

  • Correct Answer
  • -1/2 

  • Tags: Bank Exams

    Simplification problems


    Search Results


    • 1. Simplify (b2x 3a2z4 ) × (b2x 4a4z3 )/(a3b2z4 )

    • Options
    • A. b2x7a3z3
    • B. b3x7a3 z3
    • C. b2x5a3 z3
    • D. b2x7a3z2
    • Discuss
    • 2. If 3x - 2(4 - 3x) < 2x - 5 < 3x + 3; then the value of x is

    • Options
    • A. 1
    • B. 2
    • C. 5
    • D. 0
    • Discuss
    • 3. Mayur can complete a work in 27 hours. If he is joined by Jayantika who is 100% more efficient, in what time will they together finish the work?

    • Options
    • A. 6 hours
    • B. 3 hours
    • C. 9 hours
    • D. 10 hours
    • Discuss
    • 4. If cosec 45° - sin 30° = x, then x is

    • Options
    • A. 5/?3
    • B. (?6-1)/?2
    • C. ?3+2
    • D. (2?2-1)/2
    • Discuss
    • 5. If cosA = x, then x is

    • Options
    • A. ?(1 - cos2A)
    • B. ?(1 + sin2A)
    • C. ?(1 + cos2A)
    • D. ?(1 - sin2A)
    • Discuss
    • 6. If a + b = 9 and a2+ b2= 61 , then ab is

    • Options
    • A. 20
    • B. 10
    • C. 81
    • D. 142
    • Discuss
    • 7. Reflection of the point (2,5) in the x axis is

    • Options
    • A. (2,5)
    • B. (-2,5)
    • C. (2,-5)
    • D. (-2,-5)
    • Discuss
    • 8. If 1/?(1+tan2A) = x , then value of x is

    • Options
    • A. cosA
    • B. sinA
    • C. cosecA
    • D. secA
    • Discuss
    • 9. What is the equation of the line passing through the point (0,4) and making an angle of 45° with the positive xaxis?

    • Options
    • A. x + y = 4
    • B. x - y = - 4
    • C. x + y = -4
    • D. x - y = 4
    • Discuss
    • 10. What is the value of ?[(1 + sinA)/(1 - sinA)]?

    • Options
    • A. secA - tanA
    • B. cosecA + tanA
    • C. secA + tanA
    • D. cosecA - tanA
    • Discuss


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