SOLUTION: I have been ill and have missed several weeks of school. I am trying to catch up now that I am home from the hospital via email. My pre-cal/trig teacher sent me several homework as
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-> SOLUTION: I have been ill and have missed several weeks of school. I am trying to catch up now that I am home from the hospital via email. My pre-cal/trig teacher sent me several homework as
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Question 836438: I have been ill and have missed several weeks of school. I am trying to catch up now that I am home from the hospital via email. My pre-cal/trig teacher sent me several homework assignments, but I am so behind that I do not now how to do these problems. Can you help with this one and maybe I can use it as an example? I can use a calculator on these problems.
The problem: tan{arc tan 1/2 + arc tan 1/3]
Thank you so much!
You can put this solution on YOUR website! Do you know what tan and arc tan mean ?
If not, is the side opposite angle
divided by the side adjacent to angle .
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Of course, You are always talking about a right triangle means " the angle whose tan is . is a number here, not an angle
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Work inside the parentheses one term at a time.
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On my Casio fx-115 ES, I press [ SHIFT-tan- 1/2 = ]
That gives me which is the angle whose
tan is
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Next I press [ SHIFT-tan-1/3 = ]
That give me which is the angle whose
tan is
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Now add the angles:
At this point, you have:
This is tan of the angle 45 degrees
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Now press [ tan-45 = ]
That should give you , which is the answer.
It is a number, not an angle
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Note that your calculator has to be set up for angles
and not radians in order to follow this.
Your calculator shouldn't be much different
Hope this helps
