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Home Aptitude Simplification Comments

  • Question
  • If 2cosAsinB = x, then the value of x is?


  • Options
  • A. sin(A+B) + sin(A-B)
  • B. cos(A++ cos(A-B)
  • C. sin(A+B) - sin(A-B)
  • D. cos(A-B) - cos(A+B)

  • Correct Answer
  • sin(A+­- sin(A-­B) 

  • Tags: Bank Exams

    Simplification problems


    Search Results


    • 1. If 2x - 2(3 + 4x) < -1 - 2x > -5/3 - x/3; then x can take which of the following values?

    • Options
    • A. 1
    • B. 2
    • C. -2
    • D. -1
    • Discuss
    • 2. If a - b = -7 and a2+ b2= 85 , then find ab.

    • Options
    • A. 18
    • B. -30
    • C. -44
    • D. 60
    • Discuss
    • 3. If (9 - 3x) - (17x - 10) = -1, then the value of x is

    • Options
    • A. 1
    • B. -1
    • C. 9/10
    • D. -0.9
    • Discuss
    • 4. Find length of the arc whose central angle is 45° and radius of the circle is 28 cm?

    • Options
    • A. 11 cm
    • B. 33 cm
    • C. 44 cm
    • D. 22 cm
    • Discuss
    • 5. A line passing through the origin perpendicularly cuts the line 3x - 2y = 6 at point M. Find M?

    • Options
    • A. (18/13, 12/13)
    • B. (18/13, -12/13)
    • C. (-18/13, -12/13)
    • D. (-18/13, 12/13)
    • Discuss
    • 6. Factors of 48x3- 8x2- 93x- 45 are

    • Options
    • A. (4x + 3)(4x - 3)(3x - 5)
    • B. (4x - 3)(4x - 3)(3x- 5)
    • C. (4x + 3)(4x + 3)(3x - 5)
    • D. (4x - 3)(4x + 3)(3x + 5)
    • Discuss
    • 7. If cosec4A - cosec2A = x , then value of x is?

    • Options
    • A. tan4A + tan2A
    • B. cot4A + cot2A
    • C. cot4A - cot2A
    • D. tan4A - tan2A
    • Discuss
    • 8. If xy = 56 and x2+ y2= 113 , then what will be the value of (x + y)?

    • Options
    • A. 29
    • B. 21
    • C. 36
    • D. 15
    • Discuss
    • 9. A and B together have Rs. 6300. If 5/19 of A's amount is equal to 2/5 of B's amount. The amount of 'B' is

    • Options
    • A. Rs. 2500
    • B. Rs. 3800
    • C. Rs.2300
    • D. Rs. 4000
    • Discuss
    • 10. If 5x + 1/x = 10, then x2 + 125x2 is equal to

    • Options
    • A. 215
    • B. 335
    • C. 315
    • D. 235
    • Discuss


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