In the Introduction to the Derivative video we introduce the notion of the derivative of a function and explain how the derivative captures the instantaneous rate of change of a function. In the ...

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Revise differentiation of algebraic and trigonometric expressions, which can be used for calculating rates of change, stationary points and their nature, or the gradient and equation of a tangent to a ...

Revising the trigonometric laws and identities, covered in Class 10 and 11, can help you crack the toughest of questions Trigonometry is the mathematics of triangles and it is quite amazing that the ...