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  • Question
  • If x = 313- 3-13 , then 3x2 + 9x is equal to


  • Options
  • A. 5
  • B. 6
  • C. 7
  • D. 8

  • Correct Answer


  • Tags: Bank Exams

    Simplification problems


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    • 1. If x = 222, y = 223, z = 225 then the value of x3 + y3 + z3 - 3xyz is

    • Options
    • A. 4590
    • B. 4690
    • C. 4950
    • D. 4960
    • Discuss
    • 2. If C+1C = 3 , then what is the value of C3+1C3 = ?

    • Options
    • A. 0
    • B. 3?3
    • C. 1/?3
    • D. 6?3
    • Discuss
    • 3. If 4x + 1x = 5, (x?0), then the value of 5x4x2+10x+1 is

    • Options
    • A. 1/2
    • B. 1/3
    • C. 2/3
    • D. 3
    • Discuss
    • 4. Value of (cos 53° - sin 37°) is

    • Options
    • A. 2 sin 37 ?
    • B. 2 cos 53 ?
    • C. 0
    • D. 1
    • Discuss
    • 5. If sec (4x - 50°) = cosec(50° - x), Then the value of x is

    • Options
    • A. 45°
    • B. 90°
    • C. 30°
    • D. 60°
    • Discuss
    • 6. If cosec ? + sin? = 5/2 then the value of cosec? - sin? is

    • Options
    • A. -3/2
    • B. 3/2
    • C. ??3/2
    • D. ?3/2
    • Discuss
    • 7. If ab+ba = -1 , then the value of a2b-b2a is

    • Options
    • A. 1
    • B. -1
    • C. 0
    • D. 2
    • Discuss
    • 8. If sec? = cosecq with 0° < ? , q < 90°, then the value of sin (? + q) is

    • Options
    • A. 1
    • B. 0
    • C. 2
    • D. 4
    • Discuss
    • 9. If x+19x=4 , then 9x2+19x2 is

    • Options
    • A. 140
    • B. 142
    • C. 144
    • D. 146
    • Discuss
    • 10. If a = 2 , b = 3 then the value of 27a3 - 54a2b + 36ab2 - 8b3 is

    • Options
    • A. 1562
    • B. 1616
    • C. 1676
    • D. 1728
    • Discuss


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