Second order derivatives

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Analytical Geometry
Circles Equation given center and radius given ends of diameter General equation finding center and radius Standard forms of equations of Parabola Standard forms of equations of Ellipse Standard forms of equations of Hyperbola simple properties
Complex numbers
modulus and conjugate Arithmetic operations on complex number Modulus Amplitude form (Polar form) Euler form (exponential form) Properties De Movire’s Theorem and its applications
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Diffrentiation and it's Applications
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Integration and Its Applications
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Matrices
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Resolving a given rational function into partial fractions.
TRIGONOMETRY
Properties of Trigonometric functions Ratios of compound angles Multiple angles Sub multiple angles Transformations of Products into sum or difference and vice versa Simple trigonometric equations Properties of triangles Inverse Trigonometric functions
If y = x², what is the second derivative d²y/dx²?
A
0
B
1
C
2
D
2x
Analysis & Theory

dy/dx = 2x, then d²y/dx² = 2.