lanaiheart7
21.07.2021 •
Mathematics
Verify that sin 2x = 2 cotx sin2x is an identity.
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Ответ:
x=38.87°
Step-by-step explanation:
From the way you described the diagram, it should be similar to the one in the attachment.
To find angle x, we use the cosine ratio
Take cosine inverse to get:
Use your calculator to obtain: