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31-05-2022
Mathematics

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Use an identity to find the value of

Use an identity to find the value of class=

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Аноним Аноним

31-05-2022

Answer:

-sin Ф

Step-by-step explanation:

sin( O + 180) = sinФ cos180 + sin180 cosФ

= sin Ф * -1 + 0 * cos Ф

= -sin Ф

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Аноним Аноним

31-05-2022

sin(A+B)=sinAcosB+cosAsimB

So

sin(Ø+180)
sinØcos180+cosØsin180
-sinØ+0
-sinØ

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