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Haryana Police Constable Model Paper 4
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© examsnet.com
Question : 54
Total: 100
Find the value of
cos
50
°
cos
130
°
.
0
sin50°
-1
1
Validate
Solution:
cos
50
o
cos
(
180
o
−
50
o
)
⇒
cos
50
o
(
−
cos
50
o
)
=
−
1
∴
-1
© examsnet.com
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