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Home Aptitude Simplification Comments

  • Question
  • What is the smplified value of Sin2A/1+Cos2A ?


  • Options
  • A. tan A
  • B. cot A
  • C. sin A
  • D. cos A

  • Correct Answer
  • tan A 

  • Tags: AIEEE, Bank Exams, CAT

    Simplification problems


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    • 1. If a + b + c = 27, then what is the value of (a ? 7)3 + (b ? 9)3 + (c ? 11)3 ? 3(a ? 7)(b ? 9)(c ? 11) ?

    • Options
    • A. 0
    • B. 9
    • C. 27
    • D. 3
    • Discuss
    • 2. If x = 6+26 , then what is the value of x-1 + 1x-1 ?

    • Options
    • A. 2?3
    • B. 3?2
    • C. 2?2
    • D. 3?3
    • Discuss
    • 3. In the following question, correct the equation by interchanging two signs. 4 x 3 ? 6 ÷ 2 + 7 = 8

    • Options
    • A. ? and +
    • B. x and ?
    • C. ÷ and x
    • D. x and +
    • Discuss
    • 4. ( 1155 ) +(18 ? 6) × 9 =?

    • Options
    • A. 113
    • B. 115
    • C. 100
    • D. 110
    • Discuss
    • 5. Out of the 60 students of a class, 29 took Mathematics, 32 took Biology and 8 took none of the two subjects. How many students took both Mathematics and Biology?

    • Options
    • A. 8
    • B. 9
    • C. 7
    • D. 6
    • Discuss
    • 6. What is the simplified value of Sec ACot A + Tan A2 ?

    • Options
    • A. 1 ? cos2A
    • B. 2sin2A
    • C. sec2A
    • D. 0
    • Discuss
    • 7. The mode of the data -3, 4, 0, 4, -2, -5, 1, 7, 10, 5 is

    • Options
    • A. 0
    • B. 4
    • C. -2
    • D. 7
    • Discuss
    • 8. Given that tan(? + 15°) = ?3. Then the value of ? is?

    • Options
    • A. 15°
    • B. 75°
    • C. 45°
    • D. 65°
    • Discuss
    • 9. A bag contains 25 paise, 50 paise and 1 Rs coins. There are 220 coinsinall and the total amount in the bag is Rs. 160. If there arethrice as many 1 Rs. coins as there are 25 paise coins, then what is the number of 50 paise coins?

    • Options
    • A. 60
    • B. 40
    • C. 120
    • D. 80
    • Discuss
    • 10. Simplify : 69 X 69 X 69 -65 X 65 X 669 X 69 + 69 X 65 + 65 X 65

    • Options
    • A. 1
    • B. 4
    • C. 0.216
    • D. 0.164
    • Discuss


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