Q. 1 C4.0( 25 Votes )

Using differentia

Answer :

Consider y = .

Let x = 1 and Δx = -0.4. Then, we get

= √0.6-1

= √0.6 = Δy + 1

Now, dy is approximately equal to Δy and is given by:

= -0.2

Therefore, the approximate value of is 0.8.

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