| 132389 | | Medium | Strang | |
| 132390 | | Deep | Strang | |
| 132391 | | Deep | Strang | |
| 132392 | | Deep | Strang | |
| 132393 | Rewrite … as … by choosing the correct “phase angle” | Deep | Strang | |
| 132394 | Match … with | Deep | Strang | |
| 132395 | Draw the base of a triangle from the origin … to | Deep | Strang | |
| 132396 | Extend the same triangle to a parallelogram with its fourth corner at… | Deep | Strang | |
| 103826 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 5 | Medium | OpenStax | |
| 103828 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 7 | Medium | OpenStax | |
| 103830 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 9 | Medium | OpenStax | |
| 103832 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 11 | Medium | OpenStax | |
| 103834 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 13 | Medium | OpenStax | |
| 103836 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 15 | Medium | OpenStax | |
| 103838 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 17 | Medium | OpenStax | |
| 103840 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 19 | Medium | OpenStax | |
| 103842 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 21 | Medium | OpenStax | |
| 103844 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 23 | Medium | OpenStax | |
| 103846 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 25 | Medium | OpenStax | |
| 103848 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 27 | Medium | OpenStax | |
| 103856 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 35 | Deep | OpenStax | |
| 103858 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 37 | Deep | OpenStax | |
| 103860 | Verifying Trigonometric Identities and Using Trigonometric Identities to Simplify Trigonometric Expressions · Exercise 39 | Deep | OpenStax | |
| 104087 | Solving Trigonometric Equations · Try It 1 | Easy | OpenStax | |
| 104091 | Solving Trigonometric Equations · Try It 2 | Easy | OpenStax | |
| 104098 | Solving Trigonometric Equations · Try It 4 | Easy | OpenStax | |
| 104111 | Solving Trigonometric Equations · Exercise 5 | Medium | OpenStax | |
| 104113 | Solving Trigonometric Equations · Exercise 7 | Medium | OpenStax | |
| 104115 | Solving Trigonometric Equations · Exercise 9 | Medium | OpenStax | |
| 104119 | Solving Trigonometric Equations · Exercise 13 | Medium | OpenStax | |
| 104121 | Solving Trigonometric Equations · Exercise 15 | Medium | OpenStax | |
| 104129 | Solving Trigonometric Equations · Exercise 23 | Medium | OpenStax | |
| 104131 | Solving Trigonometric Equations · Exercise 25 | Medium | OpenStax | |
| 104133 | Solving Trigonometric Equations · Exercise 27 | Medium | OpenStax | |
| 104135 | Solving Trigonometric Equations · Exercise 29 | Medium | OpenStax | |
| 104141 | Solving Trigonometric Equations · Exercise 35 | Medium | OpenStax | |
| 104145 | Solving Trigonometric Equations · Exercise 39 | Medium | OpenStax | |
| 104147 | Solving Trigonometric Equations · Exercise 41 | Medium | OpenStax | |
| 104149 | Solving Trigonometric Equations · Exercise 43 | Medium | OpenStax | |
| 104155 | Solving Trigonometric Equations · Exercise 49 | Medium | OpenStax | |
| 104157 | Solving Trigonometric Equations · Exercise 51 | Medium | OpenStax | |
| 104159 | Solving Trigonometric Equations · Exercise 53 | Medium | OpenStax | |
| 104171 | Solving Trigonometric Equations · Exercise 65 | Medium | OpenStax | |
| 104175 | Solving Trigonometric Equations · Exercise 69 | Medium | OpenStax | |
| 104179 | Solving Trigonometric Equations · Exercise 73 | Medium | OpenStax | |
| 104181 | Solving Trigonometric Equations · Exercise 75 | Medium | OpenStax | |
| 104183 | Solving Trigonometric Equations · Exercise 77 | Medium | OpenStax | |
| 104185 | Solving Trigonometric Equations · Exercise 79 | Medium | OpenStax | |
| 104187 | Solving Trigonometric Equations · Exercise 81 | Medium | OpenStax | |
| 104191 | Solving Trigonometric Equations · Exercise 85 | Deep | OpenStax | |