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UPSC NDA II 2011 Mathematics Paper
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© examsnet.com
Question : 16
Total: 120
At an extreme point of a function
f
(
x
)
, the tangent to the curve is
parallel to the
x
-axis
perpendicular to the
x
-axis
inclined at an angle
45
∘
to the
x
-axis
inclined at an angle
60
∘
to the
x
-axis
Validate
Solution:
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