New ! Maths MCQ Practise Tests

11th Standard Maths English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Eight

11th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Maths

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

    Answer all the questions

    10 x 1 = 10
  1. The function f(x) = log (x + \(\sqrt{x^2+1}\)) is

    (a)

    an even function

    (b)

    an odd function

    (c)

    a periodic function

    (d)

    neither an even nor an odd function

  2. The value of log108+log105-log10=

    (a)

    \({ log }_{ 10 }^{ 9 }\)

    (b)

    \({ log }_{ 10 }^{ 36 }\)

    (c)

    1

    (d)

    -1

  3. For x≥2, |x-2|=

    (a)

    2-x

    (b)

    2+x

    (c)

    x-2

    (d)

    x

  4. \(\left(1+\frac{1}{\lfloor2}+\frac{1}{\lfloor4}+\frac{1}{\lfloor6}+...\right)^2-\left(1+\frac{1}{\lfloor3}+\frac{1}{\lfloor5}+\frac{1}{\lfloor7}+...\right)^2=\)

    (a)

    1

    (b)

    2

    (c)

    e

    (d)

    2e

  5. Find the nearest point on the line 3x + y = 10 from the origin is:

    (a)

    (2, 1)

    (b)

    (1, 2)

    (c)

    (3, 1)

    (d)

    (1,3)

  6. If h2=ab, then the lines represented by ax2+2hx+by2=0 are

    (a)

    parallel

    (b)

    perpendicular

    (c)

    coincident

    (d)

    None

  7. On using elementary row operation R1⟶R1-3R2 in the following matrix equation \(\begin{pmatrix} 4 & 2 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ 0 & 3 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}\)

    (a)

    \(\begin{pmatrix} -5 & -7 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & -7 \\ 0 & 3 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}\)

    (b)

    \(\begin{pmatrix} -5 & -7 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ 0 & 3 \end{pmatrix}\begin{pmatrix} -1 & -3 \\ 1 & 1 \end{pmatrix}\)

    (c)

    \(\begin{pmatrix} -5 & -7 \\ 3 & 3 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ 1 & -7 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}\)

    (d)

    \(\begin{pmatrix} 4 & 2 \\ -5 & -7 \end{pmatrix}=\begin{pmatrix} 1 & 2 \\ -3 & -3 \end{pmatrix}\begin{pmatrix} 2 & 0 \\ 1 & 1 \end{pmatrix}\)

  8. The vector in the direction of the vector\(\hat{i}-2\hat{j}+2\hat{k}\) that has magnitude 9 is

    (a)

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

    (b)

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

    (c)

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

    (d)

    9(\(\hat{i}-2\hat{j}+2\hat{k}\))

  9. The slope of the graph of \(f\left( x \right) =\frac { \left| x \right| }{ x } ,x>0\quad is\)

    (a)

    1

    (b)

    0

    (c)

    -1

    (d)

    undefined

  10.  Choose the correct or the most suitable answer from the given four alternatives.
    If \(y=\log _{ a }{ x } \) then \(\frac { dy }{ dx } \) is

    (a)

    \(\frac { 1 }{ x } \)

    (b)

    \(\frac { 1 }{ x\log _{ e }{ a } } \)

    (c)

    \(\log { _{ e }^{ a } } \)

    (d)

    \(\frac { 1 }{ \log _{ a }{ x } } \)

*****************************************

TN 11th Standard Maths free Online practice tests

Reviews & Comments about 11th Standard Maths English Medium Free Online Test One Mark Questions with Answer Key 2020 - Part Eight

Write your Comment