EduSahara™ Assignment
Name : Standard Trigonometric Ratios
Chapter : Trigonometrical Ratios
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
sin
30°
=
(i)
1
4
(ii)
(
−
1
2
)
(iii)
1
(iv)
3
2
(v)
1
2
Question
2
2.
cos
90°
=
(i)
0
(ii)
3
(iii)
1
(iv)
(
−
1
)
(v)
(
−
3
)
Question
3
3.
tan
30°
=
(i)
1
(ii)
4
√
1
3
(iii)
√
1
3
(iv)
1
3
(v)
√
-1
3
Question
4
4.
cot
30°
=
(i)
√
6
(ii)
√
3
(iii)
3
(iv)
4
√
3
(v)
√
1
3
Question
5
5.
sec
60°
=
(i)
5
(ii)
1
(iii)
2
(iv)
0
(v)
3
Question
6
6.
cosec
45°
=
(i)
√
1
2
(ii)
2
(iii)
√
2
(iv)
√
5
(v)
4
√
2
Assignment Key
1) (v)
2) (i)
3) (iii)
4) (ii)
5) (iii)
6) (iii)
