Echo009
18.07.2019 •
Mathematics
Solve 2-3cos x=5+3cox x for 0 degree < = x < = 180 degree
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Ответ:
You have:
2-3cosx=5+3cosx
Solve for cosx:
-3cosx-3cosx=5-2
-6cosx=3
cosx=3/-6
cosx=-1/2
x=120°
The answer is: 120°
Ответ:
7+9=16
Step-by-step explanation:
let us add the numbers step by step:
Just add the numbers like this [1+3,2+4,3+5,4+6,5+7,6+8,7+9…]
you get the answer 7+9=16