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11th Standard Maths English Medium Free Online Test 1 Mark Questions 2020

11th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

    Answer all the questions

    10 x 1 = 10
  1. The function f:R➝R be defined by f(x)=sinx+cosx is

    (a)

    an odd function

    (b)

    neither an odd function nor an even function

    (c)

    an even function

    (d)

    both odd function and even function

  2. If \({ log }_{ \sqrt { x } }\) 0.25 =4 ,then the value of x is

    (a)

    0.5

    (b)

    2.5

    (c)

    1.5

    (d)

    1.25

  3. \(\sqrt [ 4 ]{ 11 } \) is equal to

    (a)

    \(\sqrt [ 8 ]{ 11^{ 2 } } \)

    (b)

    \(\sqrt [ 8 ]{ 11^{ 4 } } \)

    (c)

    \(\sqrt [ 8 ]{ 11^{ 8 } } \)

    (d)

    \(\sqrt [ 8 ]{ 11^{ 6 } } \)

  4. If tan α and tan β are the roots of tan2x + atanx + b = 0; then \(\frac { sin(\alpha +\beta ) }{ sin\alpha sin\beta } \) is equal to

    (a)

    \(\frac { b }{ a } \)

    (b)

    \(\frac { a }{ b } \)

    (c)

    \(\frac { a }{ b } \)

    (d)

    \(\frac { b}{ a } \)

  5. If tanA=\(\frac { a }{ a+1 } \) and B=\(\frac { 1 }{ 2a+1 } \) then the value of A+B is

    (a)

    0

    (b)

    \(\frac { \pi }{ 2 } \)

    (c)

    \(\frac { \pi }{ 3 } \)

    (d)

    \(\frac { \pi }{ 4 } \)

  6. \(\frac{1}{360}\) of a complete rotation clockwise is

    (a)

    -1°

    (b)

    -360°

    (c)

    -90°

    (d)

  7. The product of r consecutive positive integers is divisible by

    (a)

    r!

    (b)

    r!+1

    (c)

    (r+1)

    (d)

    none of these

  8. If \(\frac { 1 }{ 7! } +\frac { 1 }{ 8! } =\frac { A }{ 9! } ,\) then the value of A is

    (a)

    72

    (b)

    82

    (c)

    9

    (d)

    92

  9. Find the odd one out of the following

    (a)

    \(\hat { i } +2\hat { j } +3\hat { k } \)

    (b)

    \(2\hat { i } +4\hat { j } +6\hat { k } \)

    (c)

    \(7\hat { i } +14\hat { j } +21\hat { k } \)

    (d)

    \(\hat { i } +3\hat { j } +2\hat { k } \)

  10. If two events A and B are such that \(P(\overline{A})={3\over10}\) and \(P(A \cap \overline{B})={1\over2},\) then \(P(A\cap B)\) is

    (a)

    \({1\over2}\)

    (b)

    \({1\over3}\)

    (c)

    \({1\over4}\)

    (d)

    \({1\over5}\)

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