EduSahara™ Assignment
Name : Trigonometric Ratio Angle Simplification
Chapter : Introduction to Trigonometry
Grade : CBSE Grade X
License : Non Commercial Use
Question 1
1.
    • The value of
    • sin
      81°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    81°
  • (ii)
    sin
    81°
  • (iii)
      −  
    cos
    81°
  • (iv)
    cos
    81°
Question 2
2.
    • The value of
    • cos
      36°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    36°
  • (ii)
    cos
    36°
  • (iii)
      −  
    sin
    36°
  • (iv)
      −  
    cos
    36°
Question 3
3.
    • The value of
    • tan
      53°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cot
    53°
  • (ii)
      −  
    cot
    53°
  • (iii)
      −  
    tan
    53°
  • (iv)
    tan
    53°
Question 4
4.
    • The value of
    • cot
      37°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    37°
  • (ii)
    tan
    37°
  • (iii)
      −  
    cot
    37°
  • (iv)
    cot
    37°
Question 5
5.
    • The value of
    • sec
      89°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    89°
  • (ii)
    cosec
    89°
  • (iii)
      −  
    sec
    89°
  • (iv)
    sec
    89°
Question 6
6.
    • The value of
    • cosec
      60°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    60°
  • (ii)
      −  
    sec
    60°
  • (iii)
      −  
    cosec
    60°
  • (iv)
    sec
    60°
Question 7
7.
    • The value of
    • sin
      167°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    77°
  • (ii)
    cos
    77°
  • (iii)
    sin
    77°
  • (iv)
      −  
    cos
    77°
Question 8
8.
    • The value of
    • cos
      130°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    40°
  • (ii)
    sin
    40°
  • (iii)
    cos
    40°
  • (iv)
      −  
    cos
    40°
Question 9
9.
    • The value of
    • tan
      94°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    4°
  • (ii)
    tan
    4°
  • (iii)
      −  
    tan
    4°
  • (iv)
    cot
    4°
Question 10
10.
    • The value of
    • cot
      116°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    26°
  • (ii)
      −  
    cot
    26°
  • (iii)
    tan
    26°
  • (iv)
    cot
    26°
Question 11
11.
    • The value of
    • sec
      95°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    5°
  • (ii)
      −  
    sec
    5°
  • (iii)
    sec
    5°
  • (iv)
      −  
    cosec
    5°
Question 12
12.
    • The value of
    • cosec
      168°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    78°
  • (ii)
    cosec
    78°
  • (iii)
    sec
    78°
  • (iv)
      −  
    sec
    78°
Question 13
13.
    • The value of
    • sin
      209°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    29°
  • (ii)
      −  
    sin
    29°
  • (iii)
    cos
    29°
  • (iv)
      −  
    cos
    29°
Question 14
14.
    • The value of
    • cos
      228°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cos
    48°
  • (ii)
      −  
    sin
    48°
  • (iii)
    cos
    48°
  • (iv)
    sin
    48°
Question 15
15.
    • The value of
    • tan
      236°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cot
    56°
  • (ii)
    tan
    56°
  • (iii)
      −  
    cot
    56°
  • (iv)
      −  
    tan
    56°
Question 16
16.
    • The value of
    • cot
      263°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    tan
    83°
  • (ii)
    cot
    83°
  • (iii)
      −  
    cot
    83°
  • (iv)
      −  
    tan
    83°
Question 17
17.
    • The value of
    • sec
      195°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    15°
  • (ii)
      −  
    cosec
    15°
  • (iii)
      −  
    sec
    15°
  • (iv)
    sec
    15°
Question 18
18.
    • The value of
    • cosec
      209°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    29°
  • (ii)
      −  
    sec
    29°
  • (iii)
    sec
    29°
  • (iv)
      −  
    cosec
    29°
Question 19
19.
    • The value of
    • sin
      328°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    58°
  • (ii)
    sin
    58°
  • (iii)
      −  
    cos
    58°
  • (iv)
    cos
    58°
Question 20
20.
    • The value of
    • cos
      358°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cos
    88°
  • (ii)
      −  
    cos
    88°
  • (iii)
    sin
    88°
  • (iv)
      −  
    sin
    88°
Question 21
21.
    • The value of
    • tan
      291°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    tan
    21°
  • (ii)
      −  
    cot
    21°
  • (iii)
    cot
    21°
  • (iv)
      −  
    tan
    21°
Question 22
22.
    • The value of
    • cot
      288°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    18°
  • (ii)
    cot
    18°
  • (iii)
    tan
    18°
  • (iv)
      −  
    tan
    18°
Question 23
23.
    • The value of
    • sec
      358°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sec
    88°
  • (ii)
    sec
    88°
  • (iii)
    cosec
    88°
  • (iv)
      −  
    cosec
    88°
Question 24
24.
    • The value of
    • cosec
      353°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    83°
  • (ii)
      −  
    cosec
    83°
  • (iii)
    sec
    83°
  • (iv)
      −  
    sec
    83°
    Assignment Key
  •  1) (ii)
  •  2) (ii)
  •  3) (iv)
  •  4) (iv)
  •  5) (iv)
  •  6) (i)
  •  7) (ii)
  •  8) (i)
  •  9) (i)
  •  10) (i)
  •  11) (iv)
  •  12) (iii)
  •  13) (ii)
  •  14) (i)
  •  15) (ii)
  •  16) (ii)
  •  17) (iii)
  •  18) (iv)
  •  19) (iii)
  •  20) (iii)
  •  21) (ii)
  •  22) (iv)
  •  23) (iii)
  •  24) (iv)