Trigonometry English Medium Free Online Test 1 Mark Questions 2020-2021

9th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Maths

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

    Part A

    10 x 1 = 10
  1. if sin 300 = x and cos 600 = y, then x2  + y2 is________.

    (a)

    \(\frac { 1 }{ 2 } \)

    (b)

    0

    (c)

    sin90°

    (d)

    cos90°

  2. The value of tan72° tan18° is ________.

    (a)

    0

    (b)

    1

    (c)

    180

    (d)

    720

  3. The value of \(\frac { 2tan\ 30° }{ 1-{ tan }^{ 2 }30° } \) is equal to ________.

    (a)

    cos 600

    (b)

    sin 600

    (c)

    tan 600

    (d)

    sin 300

  4. If 2 sin 2\(\theta\) = \(\sqrt { 3 } \) , them the value of \(\theta\) is ________.

    (a)

    900

    (b)

    300

    (c)

    450

    (d)

    600

  5. The value of 2tan30° tan60° is

    (a)

    1

    (b)

    2

    (c)

    \(2\sqrt { 3 } \)

    (d)

    6

  6. The value of \(\frac { 1-{ tan }^{ 2 }{ 45 }^{ 0 } }{ 1+{ tan }^{ 2 }{ 45 }^{ 0 } } \) is ________.

    (a)

    2

    (b)

    1

    (c)

    0

    (d)

    \(\frac { 1 }{ 2 } \)

  7. If cos A = \(\frac { 3 }{ 5 } \), them the value of tan A is

    (a)

    \(\frac { 4 }{ 5 } \)

    (b)

    \(\frac { 3 }{ 4 } \)

    (c)

    \(\frac { 5 }{ 3 } \)

    (d)

    \(\frac { 4 }{ 3 } \)

  8. The value of cosec(700 + \(\theta\)) - sec(200 - \(\theta\)) + tan(650 + \(\theta\)) - cot(250 - \(\theta\)) is ________.

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

    3

  9. The value of tan 1° tan 2° tan 3°...tan 89° is ________.

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

    \(\frac { \sqrt { 3 } }{ 2 } \)

  10. The value of \(\frac { sin{ 29 }^{ 0 }31' }{ cos{ 60 }^{ 0 }29' } \) is

    (a)

    0

    (b)

    2

    (c)

    1

    (d)

    -1

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

Reviews & Comments about 9th Standard Maths Trigonometry English Medium Free Online Test 1 Mark Questions 2020-2021

Write your Comment