Parametric Second Derivative (Jee Mains) | ExamDuo
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Higher Order Derivatives
Medium
Parametric Second Derivative
If x = 2 cos t - cos 2t and y = 2 sin t - sin 2t, then
d²y
dx²
at t =
π
2
is
SELECT ONE OPTION
A
3
2
B
-
3
2
C
5
2
D
-
5
2
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