How to use trigonometry on calculator

AI Thread Summary
To use trigonometric functions correctly on a calculator, ensure it's set to the appropriate angle mode. The user encountered an issue calculating (483 N) cos(44) and received an incorrect result because the calculator was in radian mode instead of degree mode. For T.I. 85 or 86 calculators, changing the mode involves pressing MODE and selecting the option to switch between degrees and radians. Setting the calculator to degrees will yield the correct result of 347 N. Properly adjusting the mode is crucial for accurate trigonometric calculations.
bcalkins
Messages
19
Reaction score
0
I know this is a pretty basic question, but it's holding me back from doing my homework due tonight. How do I use trig functions on my calculator. For example and problem in my book says:
(483 N) cos (44) = 347 N
When I plug it in my calculator like so:
(483)cos(44) =
I get: 482.9243181

What am I doing wrong??
Thank you SO much!
 
Physics news on Phys.org
Your calculator is finding the cosine of 44 radians; You want to find the cosine of 44 degrees. If you have a T.I. 85 or 86, here's how to change the calculator from degrees to radian mode:

Press MODE.
The third option changes the angle mode between degrees and radians. Set this to degrees.
 
Thank you very much!
 
Thread 'Is there a white hole inside every black hole?'
This is what I am thinking. How much feasible is it? There is a white hole inside every black hole The white hole spits mass/energy out continuously The mass/energy that is spit out of a white hole drops back into it eventually. This is because of extreme space time curvature around the white hole Ironically this extreme space time curvature of the space around a white hole is caused by the huge mass/energy packed in the white hole Because of continuously spitting mass/energy which keeps...
Why do two separately floating objects in a liquid "attract" each other ?? What if gravity is an emergent property like surface tension ? What if they both are essentially trying to *minimize disorder at the interfaces — where non-aligned polarized particles are forced to mix with each other* What if gravity is an emergent property that is trying to optimize the entropy emerging out of spin aligned quantum bits
Back
Top