Question #efceb
1 Answer
Jan 1, 2018
Start from the left-hand side:
Compare it to the right-hand:
Thus, the equation in the question only holds when
This can be verified by a graph of the two sides of the equation:
graph{(y-(sin(x))^2 (cos(x))^4)(y-(cos(x))^2-(cos(x))^4+(cos(x))^6)=0 [-10, 10, -0.25, 1.25]}
As seen, they only intersect when