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  • Question
  • The value of Cot17°Cot73°Cos222° + 1Cot17°Sec268° is


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

  • Correct Answer


  • Tags: Bank Exams

    Simplification problems


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    • 1. If x+y+z = 1, 1/x + 1/y + 1/z = 1 and xyz = -1, then x3+y3+z3 is equal to

    • Options
    • A. -1
    • B. 1
    • C. -2
    • D. 2
    • Discuss
    • 2. If 2+aa + 2+bb + 2+cc = 4 , then the value of ab+bc+caabc is

    • Options
    • A. 2
    • B. 1
    • C. 0
    • D. 1/2
    • Discuss
    • 3. If ?>0 , be an acute angle, then the value of it in degrees satisfying cos2?-3cos?+2sin2?=1 is

    • Options
    • A. 90°
    • B. 30°
    • C. 45°
    • D. 60°
    • Discuss
    • 4. If x2-3x+1=0, then x+1x is (x?0)

    • Options
    • A. 1
    • B. 0
    • C. 3
    • D. 2
    • Discuss
    • 5. ?DEF is right angled at E. If cosD = 8/17, then what is the value of secF ?

    • Options
    • A. 17/8
    • B. 8/17
    • C. 17/15
    • D. 15/17
    • Discuss
    • 6. If (x+1/x) = 5, then the value of 5xx2+5x+1 ?

    • Options
    • A. 1/3
    • B. 1/4
    • C. 1/2
    • D. 1/5
    • Discuss
    • 7. If 1aa2+1 = 3, then the value of a6+1a3 is

    • Options
    • A. 9
    • B. 18
    • C. 27
    • D. 1
    • Discuss
    • 8. If a = ?2 + 1, b = ?2 - 1 then the value of 1a+1+1b+1 ?

    • Options
    • A. 0
    • B. 1
    • C. 2
    • D. 3
    • Discuss
    • 9. ? is a positive acute angle and sin? cos? = 0, then the value of sec? + cosec? is

    • Options
    • A. 2
    • B. ?2
    • C. 2?2
    • D. 3?2
    • Discuss
    • 10. The value of 2 Tan53°Cot37°-Cot80°Tan10° ?

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


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