EduSahara™ Assignment
Name : Standard Trigonometric Ratios
Chapter : Trigonometrical Ratios
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
sin
30°
=
(i)
1
2
(ii)
1
(iii)
(
−
1
2
)
(iv)
1
4
(v)
3
2
Question
2
2.
cos
45°
=
(i)
√
-1
2
(ii)
1
2
(iii)
√
1
2
(iv)
√
3
2
(v)
4
√
1
2
Question
3
3.
tan
30°
=
(i)
√
-1
3
(ii)
1
(iii)
1
3
(iv)
4
√
1
3
(v)
√
1
3
Question
4
4.
cot
45°
=
(i)
(
−
1
)
(ii)
1
(iii)
2
(iv)
3
(v)
0
Question
5
5.
sec
60°
=
(i)
2
(ii)
(
−
1
)
(iii)
5
(iv)
1
(v)
3
Question
6
6.
cosec
30°
=
(i)
(
−
1
)
(ii)
2
(iii)
3
(iv)
1
(v)
5
Assignment Key
1) (i)
2) (iii)
3) (v)
4) (ii)
5) (i)
6) (ii)
