(COsecant = 1/sine, secant = 1/COsine)įor the angle sums, such as sin(a+b), there is always 4 functions on the other side, one of each sine, and one of each cosine. Secant and Cosecant are the reciprocals of sine and cosine, but you also swap which one has the "co-" attached to it. The other two can be obtained by dividing both sides of this equation by sin 2 or cos 2 and simplifying. Therefore the first pythagorean identity, sin 2 + cos 2 = 1 is just the Pythagorean theorem for this triangle. Compilation of Free online math resources.If your browser is so outdated or unusual that the linked advice doesn't work, consider these ideas.You will need to install a UserScript loader first.You will see formatted as in a textbook if the MathJax UserScript is installed and working. Type this as an example (replace the [- with [ when typing): being a jerk (Jerks get banned.) Using LaTeX.image or video link-posts (Links to articles, Desmos, Wolfram|Alpha, and the like are fine.).one-sentence posts (Have some respect for people who take time to answer your question and follow the posting rules.).posting of quizzes or lists of questions.offers or solicitations of payment in any form.personal information (Check your documents before posting.).r/LearnMath Chatroom Join the unofficial IRC channel: #LearnMath on Freenode (no client required).
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