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Home Aptitude Simplification Comments

  • Question
  • The least value of tan2x + cot2x is


  • Options
  • A. 3
  • B. 2
  • C. 0
  • D. 1

  • Correct Answer


  • Tags: Bank Exams

    Simplification problems


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    • 1. If P2+1P2 = 47 , then the value of P + 1P is

    • Options
    • A. 5
    • B. 6
    • C. 7
    • D. 8
    • Discuss
    • 2. AB is the diameter of a circle with center O and P be a point on its circumference. If ? POA = 120°, then the value of ? PBO is

    • Options
    • A. 30°
    • B. 60°
    • C. 50°
    • D. 40°
    • Discuss
    • 3. If x = x2+11 2 - 2, then x3 + 5x2 + 12x is

    • Options
    • A. 0
    • B. 3
    • C. 7
    • D. 11
    • Discuss
    • 4. If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is

    • Options
    • A. 16
    • B. 20
    • C. 10
    • D. 5
    • Discuss
    • 5. When 2x + 2x = 3, then x3 + 1x + 2 value is

    • Options
    • A. 2/7
    • B. 7/8
    • C. 7/2
    • D. 8/7
    • Discuss
    • 6. If x + ?5 = 5 + ?y, and x, y are positive integers, then the value of x+yx + y

    • Options
    • A. 1
    • B. 2
    • C. ?5
    • D. 5
    • Discuss
    • 7. If cos 21° = x/y, then cosec 21° - cos 69° is equal to

    • Options
    • A. x2yy2-x2
    • B. y2xy2-x2
    • C. y2xx2-y2
    • D. x2yx2-y2
    • Discuss
    • 8. If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0 , then value of (x + y - z) is

    • Options
    • A. 16
    • B. -1
    • C. -2
    • D. 12
    • Discuss
    • 9. If (x + 1/x) = 3, then x8+1x8 is equal to

    • Options
    • A. 2201
    • B. 2203
    • C. 2207
    • D. 2213
    • Discuss
    • 10. If ? + ? = 90° and ?:? = 2:1, then the ratio of cos? to cos? is

    • Options
    • A. 1:?3
    • B. 1:3
    • C. 1:?2
    • D. 1:2
    • Discuss


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