SuperLeaner5576 SuperLeaner5576

14-09-2022
Mathematics

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Use a half-angle identity to find the exact value of sin 90°

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Medunno13 Medunno13

14-09-2022

Answer:

1

Step-by-step explanation:

[tex]\sin \frac{180^{\circ}}{2}=\sqrt{\frac{1-\cos 180^{\circ}}{2}} \\ \\ \sin 90^{\circ}=\sqrt{\frac{2}{2}} \\ \\ =1[/tex]

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