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SSC CPO SI and ASI Model Paper 7
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© examsiri.com
Question :
107 of 200
Marks:
+1
,
-0
Find the value of cot1°cot2°cot3°……cot88°cot89°.
0
3
1
1
3
Validate
Solution:
(3)
c
o
t
1
°
c
o
t
2
°
c
o
t
3
°
…
…
c
o
t
88
°
c
o
t
89
°
=
c
o
t
1
°
c
o
t
2
°
c
o
t
3
°
…
c
o
t
44
°
c
o
t
45
°
c
o
t
46
°
…
c
o
t
88
°
c
o
t
89
°
=
c
o
t
1
°
c
o
t
2
°
c
o
t
3
°
…
c
o
t
44
°
c
o
t
45
°
c
o
t
(
90
°
−
44
°
)
…
.
c
o
t
(
90
°
−
2
°
)
c
o
t
(
90
°
−
1
°
)
=
c
o
t
1
°
c
o
t
2
°
c
o
t
3
°
…
c
o
t
44
°
c
o
t
45
°
t
a
n
44
°
t
a
n
43
°
…
t
a
n
2
°
t
a
n
1
°
= 1
© examsiri.com
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