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Strike441 [17]
3 years ago
10

State the chain rule for the derivative dy/dt if y(t)=f(u(t))(chain of f and u)

Mathematics
1 answer:
Ann [662]3 years ago
4 0

Answer:

\displaystyle\frac{d(y(t))}{dt} =\displaystyle\frac{d(f(u(t)))}{dt} = f'(u(t)).u'(t)

Step-by-step explanation:

The chain rule helps us to differentiate functions and a composition of two functions.

Let r(u) and s(u) be two function. Then, composition of these two functions can be be differentiated with the help of chain rule. It states that:

\displaystyle\frac{d(r(s(u)))}{du} = r'(g(u)).s'(u)

Now, we are given

y(t) = f(u(t))

Then, by chain rule, we have:

\displaystyle\frac{d(y(t))}{dt} =\displaystyle\frac{d(f(u(t)))}{dt} = f'(u(t)).u'(t)

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