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Chapter 5: Q 56. (page 298)

Use calculator to evaluate the following expression, upto three decimal place.

3log80-ln5log5+ln20

Short Answer

Expert verified

The value of the given expression is鈮�1.110

Step by step solution

01

Step 1. Given information

Given expression is3log50-ln5log5+ln20

02

Step 2. How to calculate using scientific calculator 

Apply a scientific calculator.

Press button and write the value of in after .

Press button and write the value of in after .

Press button on the calculator.

It will give the exact value of the logarithmic number.

Round the value upto three decimal places

03

Step 3. Calculation 

By entering the function following previous step, we have,

The value of the expression 3log80-ln5log5+ln20is鈮�1.110

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