find the approximate values of 10.02, given that 10 = 2.3026
Let
Let x =10 and Δx = 0.02.
As
⇒
We, know
∴
∴ Δy = 0.002
Also,
Δy = f(x+Δx)-f(x)
∴ 0.002 = loge(10+0.02) – loge(10)
⇒ 0.002 = loge(10.02) – 2.3026
⇒ loge(10.02) = 2.3046.