Answer:
2.63274768567
Step-by-step explanation:
First, note that 3.1415... is p, so 2(3.1415...) is 2pi and 4(3.1415...) is 4pi.
2pi and 4pi are full rotations, which will lead to the same cosine (i.e. cos(x) = cos (x+2pi) = cos(x+4pi) = ... = cos (x+2k*pi)).
So, the expression equals cos0.5 + cos 0.5 + cos0.5 = 3cos0.5 = 3(0.87758256189) = 2.63274768567
I hope this helps! :)
I think I might be right but you do 6x6 which would be 36.
Answer: All Real Numbers
Explanation: Notice that when you try to put your variables together on one side of the equation by subtracting 4y from both sides, the y terms cancel out on both sides and we no longer have a variable in the equation.
Notice however that we are left with the statement 12 = 12.
Since 12 = 12 is a true statement, we say that
the solution to this equation is <em>all real numbers</em>.
I need more to answer this question