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
      71°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    71°
  • (ii)
    cos
    71°
  • (iii)
      −  
    cos
    71°
  • (iv)
      −  
    sin
    71°
Question 2
2.
    • The value of
    • cos
      72°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cos
    72°
  • (ii)
      −  
    cos
    72°
  • (iii)
      −  
    sin
    72°
  • (iv)
    sin
    72°
Question 3
3.
    • The value of
    • tan
      53°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    53°
  • (ii)
    cot
    53°
  • (iii)
    tan
    53°
  • (iv)
      −  
    cot
    53°
Question 4
4.
    • The value of
    • cot
      49°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cot
    49°
  • (ii)
    tan
    49°
  • (iii)
      −  
    tan
    49°
  • (iv)
      −  
    cot
    49°
Question 5
5.
    • The value of
    • sec
      72°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    72°
  • (ii)
    cosec
    72°
  • (iii)
      −  
    sec
    72°
  • (iv)
    sec
    72°
Question 6
6.
    • The value of
    • cosec
      72°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    72°
  • (ii)
      −  
    sec
    72°
  • (iii)
    sec
    72°
  • (iv)
      −  
    cosec
    72°
Question 7
7.
    • The value of
    • sin
      128°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cos
    38°
  • (ii)
    cos
    38°
  • (iii)
      −  
    sin
    38°
  • (iv)
    sin
    38°
Question 8
8.
    • The value of
    • cos
      177°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    87°
  • (ii)
    cos
    87°
  • (iii)
    sin
    87°
  • (iv)
      −  
    cos
    87°
Question 9
9.
    • The value of
    • tan
      96°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    6°
  • (ii)
      −  
    tan
    6°
  • (iii)
    tan
    6°
  • (iv)
    cot
    6°
Question 10
10.
    • The value of
    • cot
      102°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    12°
  • (ii)
    cot
    12°
  • (iii)
    tan
    12°
  • (iv)
      −  
    cot
    12°
Question 11
11.
    • The value of
    • sec
      98°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    8°
  • (ii)
    cosec
    8°
  • (iii)
      −  
    sec
    8°
  • (iv)
      −  
    cosec
    8°
Question 12
12.
    • The value of
    • cosec
      102°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    12°
  • (ii)
    sec
    12°
  • (iii)
    cosec
    12°
  • (iv)
      −  
    sec
    12°
Question 13
13.
    • The value of
    • sin
      246°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    66°
  • (ii)
    cos
    66°
  • (iii)
    sin
    66°
  • (iv)
      −  
    cos
    66°
Question 14
14.
    • The value of
    • cos
      256°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cos
    76°
  • (ii)
    sin
    76°
  • (iii)
    cos
    76°
  • (iv)
      −  
    sin
    76°
Question 15
15.
    • The value of
    • tan
      230°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    tan
    50°
  • (ii)
      −  
    tan
    50°
  • (iii)
    cot
    50°
  • (iv)
      −  
    cot
    50°
Question 16
16.
    • The value of
    • cot
      197°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    17°
  • (ii)
      −  
    cot
    17°
  • (iii)
    tan
    17°
  • (iv)
    cot
    17°
Question 17
17.
    • The value of
    • sec
      211°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    31°
  • (ii)
    sec
    31°
  • (iii)
      −  
    sec
    31°
  • (iv)
    cosec
    31°
Question 18
18.
    • The value of
    • cosec
      251°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    71°
  • (ii)
      −  
    cosec
    71°
  • (iii)
      −  
    sec
    71°
  • (iv)
    cosec
    71°
Question 19
19.
    • The value of
    • sin
      293°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    23°
  • (ii)
    sin
    23°
  • (iii)
      −  
    cos
    23°
  • (iv)
    cos
    23°
Question 20
20.
    • The value of
    • cos
      279°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    9°
  • (ii)
      −  
    cos
    9°
  • (iii)
    cos
    9°
  • (iv)
      −  
    sin
    9°
Question 21
21.
    • The value of
    • tan
      347°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cot
    77°
  • (ii)
      −  
    cot
    77°
  • (iii)
    tan
    77°
  • (iv)
      −  
    tan
    77°
Question 22
22.
    • The value of
    • cot
      299°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    29°
  • (ii)
    tan
    29°
  • (iii)
    cot
    29°
  • (iv)
      −  
    tan
    29°
Question 23
23.
    • The value of
    • sec
      299°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    29°
  • (ii)
    cosec
    29°
  • (iii)
      −  
    cosec
    29°
  • (iv)
      −  
    sec
    29°
Question 24
24.
    • The value of
    • cosec
      347°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    77°
  • (ii)
      −  
    sec
    77°
  • (iii)
      −  
    cosec
    77°
  • (iv)
    cosec
    77°
    Assignment Key
  •  1) (i)
  •  2) (i)
  •  3) (iii)
  •  4) (i)
  •  5) (iv)
  •  6) (i)
  •  7) (ii)
  •  8) (i)
  •  9) (i)
  •  10) (i)
  •  11) (iv)
  •  12) (ii)
  •  13) (i)
  •  14) (i)
  •  15) (i)
  •  16) (iv)
  •  17) (iii)
  •  18) (ii)
  •  19) (iii)
  •  20) (i)
  •  21) (ii)
  •  22) (iv)
  •  23) (ii)
  •  24) (ii)