Mathematics: Does anyone know a user who frequently gives free points?

Does anyone know a user who frequently gives free

Ответ:

Knownothing

24.02.2021

Mathematics

Step-by-step explanation:

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Ответ:

kellynadine02

24.02.2021

Mathematics

You

Step-by-step explanation: I don't know of any specific people but I saw someone give out 100 points 10 minutes ago I wasn't able to get to it fast enough. If you just stay on the home page long enough you will find someone.

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Ответ:

putaprincess16

15.11.2022

Mathematics

$2cos^2x+sinx-1=0\\\\2(1-sin^2x)+sinx-1=0\\\\2-2sin^2x+sinx-1=0\\\\-2sin^2x+sinx+1=0\\\\-2sin^2x+2sinx-sinx+1=0\\\\-2sinx(sinx-1)-1(sinx-1)=0\\\\(sinx-1)(-2sinx-1)=0\iff sinx-1=0\ or\ -2sinx-1=0\\\\sinx=1\ or\ -2sinx=1\\\\sinx=1\ or\ sinx=-\frac{1}{2}\\\\x=\frac{\pi}{2}+2k\pi\ or\ x=-\frac{\pi}{6}+2k\pi\ or\ x=\frac{7\pi}{6}+2k\pi\ where\ k\in\mathbb{Z}$

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Does anyone know a user who frequently gives free points?

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