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KEAM 2023 Math Solved Paper
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© examsnet.com
Question : 52
Total: 120
The value of
cosec
20
∘
tan
60
∘
−
s
e
c
20
∘
is
0
1
2
4
6
Validate
Solution:
cosec
20
∘
tan
60
∘
−
s
e
c
20
∘
=
√
3
cos
e
c
20
−
s
i
n
20
=
√
3
s
i
n
20
−
1
cos
20
=
√
3
cos
20
−
s
i
n
20
s
i
n
20
cos
20
=
√
3
2
cos
20
−
1
2
s
i
n
20
1
2
s
i
n
20
cos
20
=
s
i
n
60
cos
20
−
cos
60
s
i
n
20
1
2
1
2
s
i
n
40
=
s
i
n
40
1
4
s
i
n
40
=
4
© examsnet.com
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