### Home > CALC > Chapter 9 > Lesson 9.2.1 > Problem 9-54

9-54.

No calculator! Find all point(s) of intersection for *y *= 3cos *x *and *y *= 2 cos^{2} *x *+ 1 on the interval 0 ≤ *x *≤ 2*π*. Homework Help ✎

Solve the equations in Step 4. Note that these solutions only give the *x*-values. The problem asks for the "points", so you need to calculate the corresponding *y*-values.