1. Question: a + b = 4 এবং ab = 2 হলে `a^2 + b^2` এর মান কত?

    A
    8

    B
    12

    C
    20

    D
    24

    Note: Not available
    1. Report
  2. Question: x - y = 2 এবং xy = 5 হলে `(x + y)^2`= কত?

    A
    12

    B
    19

    C
    24

    D
    23

    Note: Not available
    1. Report
  3. Question: `(a - 1/a)` এর বর্গ কোনটি?

    A
    `a^2 + 1/a^2 + 2`

    B
    `a^2 + 1/a^2 - 2`

    C
    `a^2 + 1/a^2 + 2 a`

    D
    `a^2 - 1/a^2`

    Note: Not available
    1. Report
  4. Question: `((a + b)/2)^2 - ((a - b)/2)^2 `= ?

    A
    4ab

    B
    ab

    C
    2ab

    D
    3ab

    Note: Not available
    1. Report
  5. Question: (x + 7) ও (x - 8) এর গুণফল নিচের কোনটি?

    A
    `x^2 - x - 56`

    B
    `x^2 - 15x + 56`

    C
    `x^2 + 15x - 56`

    D
    `x^2 - x + 56`

    Note: Not available
    1. Report
  6. Question: x + y = 6 এবং x - y = 4 হলে 4xy = কত?

    A
    5

    B
    13

    C
    20

    D
    52

    Note: Not available
    1. Report
  7. Question: a + b = 5 ও a - b = 4 হলে `a^2 - b^2` = কত?

    A
    10

    B
    15

    C
    20

    D
    9

    Note: Not available
    1. Report
  8. Question: `a^2 - b^2`কত; যখন a + b = 6 এবং a - b = 3

    A
    2

    B
    3

    C
    9

    D
    18

    Note: Not available
    1. Report
  9. Question: ‍ a + b = 5 এবং ab = 10 হলে `a^2 + b^2` নিচের কোনটি?

    A
    65

    B
    45

    C
    20

    D
    5

    Note: Not available
    1. Report
  10. Question: `a - 1/a = 2`হলে `a^2 + 1/a^2` = কত?

    A
    6

    B
    4

    C
    8

    D
    3

    Note: `a^2 + 1/a^2` `= (a - 1/a)^2 + 2.a.1/a` `= 2^2 + 2 = 6`
    1. Report
Copyright © 2024. Powered by Intellect Software Ltd