Verifying Sum Difference Formula Results

In summary, the purpose of verifying sum difference formula results is to ensure accuracy and validate the results obtained from using the formula. This can be done by using a calculator or manually calculating the expected outcome based on the given values. Common errors when using the formula include miscalculations and incorrect use of signs or values. The sum difference formula can be used for any type of numbers as long as they are accurately represented. Verifying results is important in scientific experiments as it increases the reliability of the data and conclusions drawn.
  • #1
aisha
584
0
Using the sum difference formula I got the following

[tex] \sin(30 degrees +45 degrees)=sin 30 cos45+cos 30 sin 45 [/tex]

I used the special triangles and got

[tex] (\frac {1}{2})(\frac {1}{\sqrt2})+(\frac {\sqrt3}{2}) (\frac {1}{\sqrt2}) [/tex]

I rationalized the denominator and got
[tex] \frac {\sqrt2+\sqrt6} {4} [/tex]

Did i make any errors? Can someone please verify. :smile:
 
Physics news on Phys.org
  • #2
Absolutely correct, well done. :smile:
 
  • #3
Thanks curious :smile:
 

1. What is the purpose of verifying sum difference formula results?

The purpose of verifying sum difference formula results is to ensure that the calculations are accurate and to validate the results obtained from using the formula. This step is important in the scientific process as it helps to confirm the validity of the data and conclusions drawn from the experiment.

2. How do you verify sum difference formula results?

To verify sum difference formula results, you can use a calculator or perform manual calculations using the formula. The calculated results should match the expected outcome based on the given values. Additionally, you can also check for errors or mistakes in the calculations to ensure accuracy.

3. What are some common errors when using the sum difference formula?

Some common errors when using the sum difference formula include miscalculations, incorrect use of signs (+ or -), incorrect substitution of values, and failure to follow the correct order of operations. It is important to double-check the calculations and be mindful of any potential errors when using the formula.

4. Can the sum difference formula be used for any type of numbers?

Yes, the sum difference formula can be used for any type of numbers, whether they are whole numbers, fractions, decimals, or even negative numbers. As long as the numbers are represented accurately in the formula, the results should be valid.

5. Why is it important to verify sum difference formula results in scientific experiments?

Verifying sum difference formula results is important in scientific experiments because it helps to ensure the accuracy and validity of the data and conclusions drawn from the experiment. It also allows for any errors or mistakes to be identified and corrected, ultimately increasing the reliability of the results.

Similar threads

  • Introductory Physics Homework Help
Replies
6
Views
793
  • Introductory Physics Homework Help
Replies
28
Views
364
  • Introductory Physics Homework Help
Replies
2
Views
1K
  • Introductory Physics Homework Help
Replies
3
Views
364
  • Introductory Physics Homework Help
Replies
8
Views
918
  • Introductory Physics Homework Help
Replies
11
Views
687
  • Introductory Physics Homework Help
Replies
3
Views
923
  • Introductory Physics Homework Help
3
Replies
97
Views
3K
  • Introductory Physics Homework Help
Replies
23
Views
353
  • Introductory Physics Homework Help
Replies
2
Views
602
Back
Top