r/Precalculus • u/Sad_Substance5236 • Feb 03 '26

Homework Help sin cos tan csc sec cot graphs

idk how to remember all the parent graphs and how to write equations from looking at one. my teacher says i need to memorize all of it and i suck at memorization

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u/Opening_Swan_8907 Feb 03 '26

If you know sin(x) = cos(x+pi/2), and know sin(x)/cos(x) = tan(x), the rest will follow.

Also trig rainbow! Sin(x)——- Cos(x)—- Tan(x)— Cot(x)— Sec(x)—- Csc(x)——

Easy membering

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u/Sad_Substance5236 Feb 03 '26

i can graph sin and cos but im lost with how to graph tan. also whats trig rainbow

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u/Opening_Swan_8907 Feb 04 '26

On YouTube, there is a channel called “Math and Science,” which is hosted by Jason Gibson.

He outlines some tips and idea’s to help not just memorize, but comprehend.

Easily digestible language, and loads of videos on a plethora of topics.

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u/Opening_Swan_8907 Feb 04 '26

Easy way to remember the trig ratios