Multiple choice

The approximate value of $ e^{1.002}$, if $e=2.7183$ is

  1. 2.7237

  2. 2.2737

  3. 2.3772

  4. 2.7273

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

e^x is approximately 1 + x + x^2/2. e^1.002 = e^1 * e^0.002. Using e^0.002 approx 1 + 0.002 = 1.002. Result = 2.7183 * 1.002 = 2.7237366.

AI explanation

Using the derivative approximation for exponential functions, e raised to the power of x plus delta x is approximately e raised to the power of x plus delta x times e raised to the power of x. Here x is 1 and delta x is 0.002, so we calculate 2.7183 plus 0.002 times 2.7183. Multiplying 2.7183 by 0.002 gives 0.0054366, and adding this to 2.7183 yields 2.7237.