Trig Functions and Graphs (degrees)
Hong Kong
Stage 4 - Stage 5
Find solutions from a graph for sine and cosine equations including phase shift (degrees)
Interactive practice questions
The functions $y=\sin\left(x-60^\circ\right)+4$y=sin(x−60°)+4 and $y=\frac{9}{2}$y=92 are drawn below.
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State all solutions to the equation $\sin\left(x-60^\circ\right)+4=\frac{9}{2}$sin(x−60°)+4=92 over the domain $\left[-360^\circ,360^\circ\right)$[−360°,360°). Give your answers in degrees, separated by commas.
Easy
< 1min
Consider the function $y=\sin\left(x-60^\circ\right)$y=sin(x−60°).
Easy
1min
Consider the function $y=\cos\left(x-30^\circ\right)$y=cos(x−30°).
Easy
1min
Consider the function $y=\sin\left(x+30^\circ\right)$y=sin(x+30°).
Easy
1min
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