Your answer is b ~d and e~f and a~ c
If the equation is

then rewrite the equation as

Divide boths sides by 7:

Since
, we can factorize this as

Now solve for <em>x </em>:



where <em>n</em> is any integer.
If you meant sin(2<em>x</em>) instead, I'm not sure there's a simple way to get a solution...
Step-by-step explanation:

hope this helpful
The greatest common factor would be xy^2 because these are the only factors that they all have in common. The second term only has 1 x, so only 1 x is part of the gcf.
The 1st and 3rd terms each have y^2 therefore making it part of the gcf as well.
i cant describe but i put y=1/x+3 -4 on the graph hope this helps