Trig Functions and Graphs (radians)
Hong Kong
Stage 4 - Stage 5
Graphical solution of trigonometric equations involving sine and cosine (radians)
Interactive practice questions
Consider the function $y=3\sin x$y=3sinx.
a
Graph this function.
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b
Add the line $y=3$y=3 to your graph.
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c
Hence, state all solutions to the equation $3\sin x=3$3sinx=3 over the domain $\left[-2\pi,2\pi\right]$[−2π,2π]. Give your answers as exact values separated by commas.
Easy
3min
Consider the function $y=3\cos x$y=3cosx.
Easy
3min
Consider the function $y=\tan x$y=tanx.
Easy
5min
Consider the function $y=\sin\left(\frac{x}{4}\right)$y=sin(x4).
Easy
4min
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