+33653 If this means y*tan45 = y*tan60 then no, it's just false (unless y = 0).
However, if y is a function and tan45 and tan60 are arguments then it's possible that the statement is true, depending on the function.
For example, if \(y(x)=(1+\sqrt3-2x)^2\) then \(y(\tan{45°})=y(1)=(\sqrt3-1)^2\) and \(y(\tan{60°})=y(\sqrt3)=(1-\sqrt3)^2\) so y(tan45°) = y(tan60°)
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