RemaO628850 RemaO628850

25-10-2022
Mathematics

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I know a) is -1, but I am not sure of b).

I know a is 1 but I am not sure of b class=

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AilynO27158 AilynO27158

25-10-2022

Simplify the trigonometric function.

[tex]\begin{gathered} \sin (270^{\circ})=\sin (90^{\circ}+180^{\circ}) \\ =\cos (180^{\circ}\text{)} \\ =-1 \end{gathered}[/tex]

The other trigonometric function is cosine and angle is 180 degree.

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