Question: How many centimeters is an inch?
- 1.27
- 2.54
- 3.81
- 5.08
Answer: (B) 2.54
How Many Centimeters is an Inch Solution:
There are 2.54 centimeters in one inch. This is a standard unit of conversion that is used in many different countries.
To convert inches to centimeters, you simply multiply the number of inches by 2.54. For example, if you have a measurement of 5 inches and want to know the equivalent in centimeters, you would calculate 5 inches * 2.54 centimeters per inch, resulting in 12.7 centimeters.
This is a standard unit conversion used worldwide, especially in measuring objects or heights. If you’re wondering, remember the formula: multiply the number of inches by 2.54 to get the equivalent measurement in centimeters. For example, 10 inches is equal to 25.4 centimeters. This conversion is useful in fields like construction, fashion design, and various sciences, where precise measurements are crucial. Understanding how many centimeters is an inch helps bridge the gap between the metric system and the imperial system.
Integration of log x
The integration of log x is a common problem in calculus. To solve it, we apply integration by parts. Let u = log x and dv = dx. Then, du = (1/x) dx, and v = x. Using the formula ∫ u dv = uv – ∫ v du, we get:
∫ log x dx = x log x – ∫ x * (1/x) dx
= x log x – ∫ 1 dx
= x log x – x + C
Therefore, the integral of log x is x log x – x + C, where C is the constant of integration.
