One among the following is the correct explanation of pedal equation of an polar curve, r=f (θ), p=r sin(∅) (where p is the length of the perpendicular from the pole to the tangent & ∅ is the angle made by tangent to the curve with vector drawn to curve from pole)is _______

Differential Calculus topics include: Leibniz rule, nth derivatives, rolles and lagrange mean value theorem, taylor mclaurin series, indeterminate forms, curvature, evolutes, envelopes, polar curves, arc length derivation, area derivatives, angle between radius vector and tangent, cauchy’s and generalized mean value theorem. Differential calculus is a branch of calculus that studies the rate of change of one variable in relation to another. It is a tool for analyzing mathematical problems, such as finding solutions to equations and understanding the behavior of curves and... Show more

Differential Calculus topics include: Leibniz rule, nth derivatives, rolles and lagrange mean value theorem, taylor mclaurin series, indeterminate forms, curvature, evolutes, envelopes, polar curves, arc length derivation, area derivatives, angle between radius vector and tangent, cauchy’s and generalized mean value theorem.

Differential calculus is a branch of calculus that studies the rate of change of one variable in relation to another. It is a tool for analyzing mathematical problems, such as finding solutions to equations and understanding the behavior of curves and surfaces. 
Differential calculus starts with a formula for average rate of change, which is essentially a slope calculation. Then, using limits, a formula for the instantaneous rate of change can be developed, which is called the derivative of a function. 
The derivative of a function at a given value gives the function's rate of change near that value. A derivative is used to calculate the slope of a tangent to a function's graph. 

Differential calculus is one of the four main concepts of calculus:
Limits
Differential calculus (Differentiation)
Integral calculus (Integration)
Multivariable calculus (Function theory) 

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