# Basic Trig

• Sep 3rd 2009, 01:01 PM
juliak
Basic Trig
There's some weird about what I'm doing - I'm not sure what it is

I'm trying to review basic SOHCAHTOA trig and all my working is right but when I put it into my calculator I get weird answers.

For example

x = 7.8/tan41

i got 48.55073
• Sep 3rd 2009, 01:09 PM
Taluivren
seems that 41 is in degrees but your calculator thinks it is in radians. Can you switch radians to degrees on your calculator?
• Sep 3rd 2009, 01:16 PM
juliak
Yes!

Thank you so much!
• Sep 3rd 2009, 01:18 PM
aidan
Quote:

Originally Posted by juliak
There's some weird about what I'm doing - I'm not sure what it is

I'm trying to review basic SOHCAHTOA trig and all my working is right but when I put it into my calculator I get weird answers.

For example

x = 7.8/tan41

i got 48.55073

$\dfrac{7.8}{tan(41 radians) } = 8.972873576$ <-- CORRECT!

$\dfrac{7.8}{tan(41 degrees) } = 48.55073$ <-- CORRECT!

$\dfrac{7.8}{tan(41 grads) } = 10.38862$ <-- CORRECT!

when calculator isn't at hand, it's good to remember 360 degrees = $2 \pi$ radians (-;
{"extraction_info": {"found_math": true, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 0, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 4, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0, "math_score": 0.9476723074913025, "perplexity": 3435.382811194129}, "config": {"markdown_headings": true, "markdown_code": true, "boilerplate_config": {"ratio_threshold": 0.18, "absolute_threshold": 10, "end_threshold": 15, "enable": true}, "remove_buttons": true, "remove_image_figures": true, "remove_link_clusters": true, "table_config": {"min_rows": 2, "min_cols": 3, "format": "plain"}, "remove_chinese": true, "remove_edit_buttons": true, "extract_latex": true}, "warc_path": "s3://commoncrawl/crawl-data/CC-MAIN-2017-39/segments/1505818693459.95/warc/CC-MAIN-20170925220350-20170926000350-00298.warc.gz"}