- #1
starchild75
- 100
- 1
Homework Statement
I typed in cos of -0.175 and I got .999999 and the physics book says it's 100. help!
starchild75 said:Homework Statement
I typed in cos of -0.175 and I got .999999 and the physics book says it's 100. help!
Homework Equations
The Attempt at a Solution
The value of cos(-0.175) is approximately 0.9848.
To solve a calculator problem involving cosine, you will need to use the cosine function on your calculator. This function is usually denoted by "cos" or "cosine" and is typically found in the trigonometry section of the calculator. Simply input the value you want to find the cosine of (in this case, -0.175) and press the "equals" button to get the result.
The range of values for cosine is between -1 and 1. This means that the value of cosine can never be less than -1 or greater than 1.
Yes, some calculators have a "Exact/Approx" button that allows you to switch between displaying the exact value or an approximation. However, since -0.175 is an irrational number, the exact value of cos(-0.175) is also irrational and cannot be displayed in decimal form.
Cosine is related to other trigonometric functions, such as sine and tangent, through the unit circle. The unit circle is a circle with a radius of 1 centered at the origin on a graph. The cosine of an angle is equal to the x-coordinate of the point where the angle intersects the unit circle. This relationship can be used to derive the values of other trigonometric functions from cosine.