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Published byRandolf Newton Modified over 9 years ago
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Mathematics
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Session Differentiation - 2
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Session Objectives Fundamental Rules, Product Rule and Quotient Rule Differentiation of Function of a Function Differentiation by Trigonometric Substitutions Differentiation of Implicit Functions Class Exercise
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Fundamental Rules
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Example-1 Differentiate the following:
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Solution Differentiating y with respect to x, we get
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Product Rule Ifand are differentiable functions, then
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Example-2 Differentiating w.r.t. x, we get Differentiate: w.r.t. x. Solution Let y =x 2 sinxlogx
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Quotient Rule Ifand are differentiable functions and, then
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Example-3 Differentiate: w.r.t. x. Solution: Differentiating w.r.t. x, we get
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Differentiation of Function of a Function Note: If and, then If ƒ(x) and g(x) are differentiable functions, then ƒog is also differentiable (Chain Rule)
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Example-4 Differentiatew. r. t. x. Solution: Differentiating y w.r.t. x, we get
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Example-5
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Continued
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Trigonometric Substitutions
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Example-6 Putting x 2 = cos2 Solution:
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Continued Differentiating y w.r.t. x, we get
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Example-7
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Continued
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Differentiation of Implicit Functions y is not expressible directly in terms of x
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Example-8 We have xy 3 – yx 3 = x Solution:
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Solution Cont.
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Thank you
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