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