Question

A metallic disc is being heated. Its area
(inm)atany timet(in second) is given by
A-5t + 4t + 8. Calculate the rate of
increase of area att=3s.​

Answer 1

Answer:

Explanation:

Answer:

The rate of increase of area at t = 3 s is 34 units

Explanation:

It is given that,

A metallic disc is being heated its area A at any time t is given by :

where t is time in seconds

We have to find the rate of increase in area at t = 3 s

Differentiating above equation wrt t as :

Putting t = 3 s

The above equation becomes :  

Hence, this is the required solution.

Answer 2

Answer:

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