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  • Question

  • What is the value of Sin 30- ?2 Cos 30


  • Options
  • A. (1 - ?6)/?2
  • B. (1 - ?6)/2
  • C. (3 - ?6)/2
  • D. (3 - ?6)/?2

  • Correct Answer
  • (1 - ?6)/2 

    • Tags: Bank Exams

    Simplification problems

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    • 1. D and E are points on side AB and AC of ?ABC. DE is parallel to BC. If AD:DB = 2:5 and area of ?ADE is 8 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

    • Options
    • A. 98
    • B. 94
    • C. 90
    • D. 86
      • Discuss
    • 2. What is the equation of the line perpendicular to the line 5x + 3y = 6 and having Y-intercept -3?

    • Options
    • A. 3x - 5y = 15
    • B. 3x + 5y = 15
    • C. 3x - 5y = -15
    • D. 3x + 5y = -15
      • Discuss
    • 3. The distance between the points (2, 7) and (k, -5) is 13. What is the value of k?

    • Options
    • A. -7
    • B. 7
    • C. 6
    • D. -6
      • Discuss
    • 4. If a - b = 4 and ab = -3, then what is the value of a3- b3 ?

    • Options
    • A. 21
    • B. 28
    • C. 23
    • D. -20
      • Discuss
    • 5. If [4(2x/5 - 3/2)]/3 + 7/5 = 37/5, then what is the value of x?

    • Options
    • A. -15
    • B. 7/5
    • C. 15
    • D. -7/5
      • Discuss
    • 6. ? XYZ is right angled at Y. If m ?Z = 60. What is the length (in cm) of YZ, if ZX = 9?3 cm?

    • Options
    • A. 3?3
    • B. 3?3/2
    • C. 9?3/2
    • D. ?3
      • Discuss
    • 7. If Sec ? = 13/12, then what is the value of Sin ??

    • Options
    • A. 5/13
    • B. 12/5
    • C. 12/13
    • D. 5/12
      • Discuss
    • 8. Calculate the value of 0.77777 + 0.7777 + 0.777 + 0.77 + 0.7 + 0.07.

    • Options
    • A. 3.86274
    • B. 3.80247
    • C. 3.85274
    • D. 3.87247
      • Discuss
    • 9. A crate of egg holds one rotten egg out of every 25 egg in it. If 5 out of 8 rotten eggs are unusable and there are total 10 unusable eggs in the crate,then calculate the number of eggs in the crate.

    • Options
    • A. 380
    • B. 400
    • C. 420
    • D. 440
      • Discuss
    • 10. What is the area (in square units) of the figure enclosed by the x-axis, the y-axis and the line x + 2y = 6 ?

    • Options
    • A. 3
    • B. 6
    • C. 9
    • D. 12
      • Discuss

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