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26 Oct 2021

Given information

Have to calculate the correct number of significant figures for .

 

Step-by-step explanation

Step 1.

The total number of single digits used in expressing a number is known as significant figures.

Solve the above expression:-

 
 
 

 

The rules for counting significant figures are,

  • All non-zero numbers are significant.
  • The zeros occurring between two significant figures are significant.
  • The trailing zeros, present in a decimal value, are the only significant ones.
  • The exponential values are not significant.
  • The number that has the least number of significant figures determines the significant figures for the answer.

 

In the number  , there are three significant figures.

In the number , there are four significant figures.

 

Round off the answer to the least number of significant figures that is three.

Therefore, the correct number of significant figures for the answer of the calculation of the given expression is .

 

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