Make x the subject of the equation.

  • Thread starter rollcast
  • Start date
In summary, making x the subject of an equation involves rearranging the equation so that x is isolated on one side and can be solved for. This is important because it helps us find solutions to problems and make predictions. Common mistakes include not performing operations correctly and not simplifying properly. To make x the subject more efficiently, identify the necessary operations and use parentheses to show the order of operations.
  • #1
rollcast
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Homework Statement



Make x the subject of the formula

sin(5x-24)=0.6

Homework Equations



sin(5x-24)=0.6

The Attempt at a Solution



sin(5x-24)=0.6
5x-24=sin^-1(0.6)
x=(sin^-1(0.6)+24)/5
 
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  • #2
You had it right I believe, what exactly is your question?

sin(5x-24) = 0.6

5x - 24 = arcsin(0.6)

5x = 24 + arcsin(0.6)

x = [24 + arcsin(0.6)] / 5

X = ~12.174
 
  • #3
Or, if (5x-24) is measured in radians, x is about 4.93.
 
  • #4
There should be an infinite number of solutions, shouldn't there? Remember that the range of the arcsin function is only [-π/2, π/2].
 

1. Can you explain what it means to "make x the subject of the equation?"

Making x the subject of an equation means rearranging the equation so that x is isolated on one side of the equals sign. This allows us to solve for the value of x.

2. How do I make x the subject of an equation?

To make x the subject of an equation, you need to use algebraic operations such as addition, subtraction, multiplication, and division to move all other variables and constants to the other side of the equation, leaving x alone on one side.

3. Why is it important to make x the subject of an equation?

Making x the subject of an equation is important because it allows us to solve for the value of x, which is often the unknown variable in an equation. This helps us to find solutions to problems and make predictions in various scientific fields.

4. What are some common mistakes when making x the subject of an equation?

Some common mistakes when making x the subject of an equation include forgetting to perform the same operation on both sides of the equation, not distributing negative signs correctly, and incorrectly simplifying fractions. It is important to double-check your work and simplify as much as possible to avoid these mistakes.

5. Are there any tips for making x the subject of an equation more efficiently?

One tip for making x the subject of an equation more efficiently is to first identify which operations need to be performed on the equation. This will help you to plan your steps and avoid making unnecessary calculations. It is also helpful to use parentheses to clearly show the order of operations and avoid mistakes.

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