Q. 1 L4.0( 5 Votes )

Using differentials, find the approximate value of each of the following up to 3 places of decimal.


Answer :

Consider y =


Let x = 27 and Δx = -0.43. Then, we get


Δy =


=



= Δy + 3


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


dy =






= -0.015


Therefore, the approximate value of is 2.984.


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