Q. 9 V5.0( 1 Vote )

Using differentials, find the approximate values of the following:

Answer :

Let us assume that

Also, let so that

On differentiating f(x) with respect to x, we get

We know

When, we have

Recall that if y = f(x) and Δx is a small increment in x, then the corresponding increment in y, Δy = f(x + Δx) – f(x), is approximately given as

Here, and

Δf = 0.0104166

Now, we have


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