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ninmagic
16.08.2020 •
Mathematics
Prove the identity (sin3A+sinA)/2sin2A= cosA
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Ответ:
Step-by-step explanation:
Using the trigonometric identity
Rewrite the expression
We have
Reduce the fraction with 2
That's
Reduce the fraction with sin 2A
We have the final answer as
cos AAs proven
Hope this helps you
Ответ:
Step-by-step explanation:
stat edit sort a calculator