bloop3r
20.12.2020 •
Mathematics
Sin2A-sin2B+sin2C=4cosA×sinB×cosC
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Ответ:
Step-by-step explanation:
mark as brainliest!!! this is not a video i sent a screenshot instead
Ответ:
you have to do
3x+1=7-6x
-3x -3x
1=7-3x
-7 -7
-3x divided by 1