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Byju's Answer
Standard XII
Mathematics
Complex Numbers
cos 11 o -cos...
Question
cos
11
o
−
cos
2
o
>
0
A
True
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B
False
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Solution
The correct option is
B
False
cos
11
o
−
cos
2
o
>
0
Ref. image
we know that value of cos decreases with increase in
θ
from 0 to
π
2
∴
cos
11
o
is less then
cos
2
o
∴
cos
11
o
−
c
o
s
2
o
should be can then zero
Hence given statement is false.
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0
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