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
      84°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    84°
  • (ii)
    cos
    84°
  • (iii)
      −  
    sin
    84°
  • (iv)
      −  
    cos
    84°
Question 2
2.
    • The value of
    • cos
      88°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    88°
  • (ii)
      −  
    cos
    88°
  • (iii)
    cos
    88°
  • (iv)
    sin
    88°
Question 3
3.
    • The value of
    • tan
      55°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    55°
  • (ii)
    cot
    55°
  • (iii)
      −  
    cot
    55°
  • (iv)
    tan
    55°
Question 4
4.
    • The value of
    • cot
      25°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    25°
  • (ii)
      −  
    tan
    25°
  • (iii)
    cot
    25°
  • (iv)
    tan
    25°
Question 5
5.
    • The value of
    • sec
      78°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    78°
  • (ii)
    sec
    78°
  • (iii)
      −  
    sec
    78°
  • (iv)
    cosec
    78°
Question 6
6.
    • The value of
    • cosec
      53°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    53°
  • (ii)
    cosec
    53°
  • (iii)
      −  
    cosec
    53°
  • (iv)
      −  
    sec
    53°
Question 7
7.
    • The value of
    • sin
      166°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    76°
  • (ii)
      −  
    sin
    76°
  • (iii)
    cos
    76°
  • (iv)
      −  
    cos
    76°
Question 8
8.
    • The value of
    • cos
      123°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cos
    33°
  • (ii)
      −  
    cos
    33°
  • (iii)
    sin
    33°
  • (iv)
      −  
    sin
    33°
Question 9
9.
    • The value of
    • tan
      92°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cot
    2°
  • (ii)
    tan
    2°
  • (iii)
      −  
    cot
    2°
  • (iv)
      −  
    tan
    2°
Question 10
10.
    • The value of
    • cot
      146°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    56°
  • (ii)
      −  
    tan
    56°
  • (iii)
    cot
    56°
  • (iv)
    tan
    56°
Question 11
11.
    • The value of
    • sec
      137°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    47°
  • (ii)
    cosec
    47°
  • (iii)
    sec
    47°
  • (iv)
      −  
    sec
    47°
Question 12
12.
    • The value of
    • cosec
      159°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sec
    69°
  • (ii)
      −  
    cosec
    69°
  • (iii)
    sec
    69°
  • (iv)
    cosec
    69°
Question 13
13.
    • The value of
    • sin
      250°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    sin
    70°
  • (ii)
    cos
    70°
  • (iii)
      −  
    cos
    70°
  • (iv)
    sin
    70°
Question 14
14.
    • The value of
    • cos
      246°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sin
    66°
  • (ii)
    cos
    66°
  • (iii)
      −  
    cos
    66°
  • (iv)
      −  
    sin
    66°
Question 15
15.
    • The value of
    • tan
      216°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cot
    36°
  • (ii)
    cot
    36°
  • (iii)
    tan
    36°
  • (iv)
      −  
    tan
    36°
Question 16
16.
    • The value of
    • cot
      198°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cot
    18°
  • (ii)
    tan
    18°
  • (iii)
      −  
    tan
    18°
  • (iv)
      −  
    cot
    18°
Question 17
17.
    • The value of
    • sec
      266°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cosec
    86°
  • (ii)
      −  
    sec
    86°
  • (iii)
    cosec
    86°
  • (iv)
    sec
    86°
Question 18
18.
    • The value of
    • cosec
      204°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cosec
    24°
  • (ii)
      −  
    sec
    24°
  • (iii)
      −  
    cosec
    24°
  • (iv)
    sec
    24°
Question 19
19.
    • The value of
    • sin
      322°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    cos
    52°
  • (ii)
    sin
    52°
  • (iii)
      −  
    sin
    52°
  • (iv)
      −  
    cos
    52°
Question 20
20.
    • The value of
    • cos
      343°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    cos
    73°
  • (ii)
    sin
    73°
  • (iii)
      −  
    sin
    73°
  • (iv)
    cos
    73°
Question 21
21.
    • The value of
    • tan
      297°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    tan
    27°
  • (ii)
    cot
    27°
  • (iii)
      −  
    cot
    27°
  • (iv)
      −  
    tan
    27°
Question 22
22.
    • The value of
    • cot
      313°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
      −  
    tan
    43°
  • (ii)
    tan
    43°
  • (iii)
    cot
    43°
  • (iv)
      −  
    cot
    43°
Question 23
23.
    • The value of
    • sec
      339°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    69°
  • (ii)
      −  
    sec
    69°
  • (iii)
    cosec
    69°
  • (iv)
      −  
    cosec
    69°
Question 24
24.
    • The value of
    • cosec
      296°
    • in terms of an angle between
    • 0°
    • and
    • 90°
    • is
  • (i)
    sec
    26°
  • (ii)
      −  
    cosec
    26°
  • (iii)
      −  
    sec
    26°
  • (iv)
    cosec
    26°
    Assignment Key
  •  1) (i)
  •  2) (iii)
  •  3) (iv)
  •  4) (iii)
  •  5) (ii)
  •  6) (ii)
  •  7) (iii)
  •  8) (iv)
  •  9) (iii)
  •  10) (ii)
  •  11) (i)
  •  12) (iii)
  •  13) (i)
  •  14) (iii)
  •  15) (iii)
  •  16) (i)
  •  17) (ii)
  •  18) (iii)
  •  19) (iv)
  •  20) (ii)
  •  21) (iii)
  •  22) (i)
  •  23) (iii)
  •  24) (iii)