Q7 of 292 Page 469

find the approximate values of

Let


Let x =2 and Δx = 0.002.


As


⇒


We, know


⇒


∴


⇒


⇒


∴ Δy = -0.0005


Also,


Δy = f(x+Δx)-f(x)


∴


⇒


⇒


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