Simplification


  1. (0.798)2 + 0.404 × 0.798 + (0.202)2 + 1 = 2 ?









  1. View Hint View Answer Discuss in Forum

    (0.798)2 + 0.404 × 0.798 + (0.202)2 + 1
    = √(0.798)2 + 2 × 0.798 × 0.202 + (0.202)2 + 1
    = √(0.798 + 0.202)2 + 1
    = √(1.000)2 + 1
    = 1 + 1 = 2

    Correct Option: B

    (0.798)2 + 0.404 × 0.798 + (0.202)2 + 1
    = √(0.798)2 + 2 × 0.798 × 0.202 + (0.202)2 + 1
    = √(0.798 + 0.202)2 + 1
    = √(1.000)2 + 1
    = 1 + 1 = 2


  1. Given that
    574.6 = 23.97
    5746 = 75.8
    then √0.00005746 equals









  1. View Hint View Answer Discuss in Forum

    0.00005746 = √5746 × 10−8
    = 75.8 × 10−4 = 0.00758

    Correct Option: D

    0.00005746 = √5746 × 10−8
    = 75.8 × 10−4 = 0.00758



  1. Find the value of









  1. View Hint View Answer Discuss in Forum

    ? = √4 + √44 + 100
    = √4 + √144
    = √4 + 12 = 4

    Correct Option: C

    ? = √4 + √44 + 100
    = √4 + √144
    = √4 + 12 = 4


  1. If √x ÷ √441 = 0.02 , then value of x is :









  1. View Hint View Answer Discuss in Forum

    x ÷ √441 = 0.02
    ⇒  √x = 0.02 × 21
    ⇒  x = 0.1764

    Correct Option: B

    x ÷ √441 = 0.02
    ⇒  √x = 0.02 × 21
    ⇒  x = 0.1764



  1. 0.49
    +
    0.81
      is equal to :
    0.250.36









  1. View Hint View Answer Discuss in Forum

    0.49
    +
    0.81
    0.25 0.36

    =
    0.7
    =
    0.9
    =
    42 + 45
    =
    87
    0.50.63030

    =
    29
    = 2
    9
    1010

    Correct Option: B

    0.49
    +
    0.81
    0.25 0.36

    =
    0.7
    =
    0.9
    =
    42 + 45
    =
    87
    0.50.63030

    =
    29
    = 2
    9
    1010