hargurgill20
31.01.2020 •
Mathematics
I) solve the equation sin2x + 3cos2x = 0 (for 0 till 360°)
ii) how many solutions has the equation sin2x + 3cos2x =0 for 0 < = x < =1080°?
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Ответ:
Tan2x = 3
2x = -71.5 so x is -35.6
Use the quadrant method and add 360 twho the two values tou get.
Ответ: