No it is not. There are 8 known planets in our solar system and all of them orbit the sun. There are also many dwarf planets.
Answer:
x = 2k
is the solution of this equation.
Step-by-step explanation:
This question is related to trigonometric equations.
The given equation is,

We have to find the solutions of this equation.
Put 
+ 3cosx - 1 = 2
= 0
For this equation only cosx = 1 is possible solution.
Cosx = 1 happens when x is a multiple of 2
So x = 2k
is the solution of this equation.
250.
Since she returns the marble every time, the probability of drawing a green marble remains constant, which is 25/40.
The subtraction symbol or (-)