sarah19Nursing
12.08.2020 •
Mathematics
Find the value of tetha in 2 cos 3 tetha = 1
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Ответ:
Step-by-step explanation: 2cos3 theta=1. Cos 3theta=1/2. Since cos 60°= 1/2. Therefore cos 3theta=cos 60°. Theta=20°.
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Ответ:
Cos 3theta = 1/2 = cos(60)
Theta = 60/3 = 20
Ответ:
Step-by-step explanation: The standard equation for a circle is: (x−h)2+(y−k)2=r2. Where (h,k) is the center and r is the radius. We want to get x2+6x+y2−2y+6=0