3. Choose two trigonometric identities. At least one of these identities must include the tangent function. A trigonometric identity is some equation incorporating trigonometric functions that is true regardless of the angle measure 0. Prove that each of your trigonometric identities are true using some method other than graphing on Desmos Self-assessment: How did you do on problem 3? Checks: Comments about your work: 4. Consider the equation f(x) = 2*+ + 4 a. Describe how the graph of f(x) differs from the graph of y = 2* b. Determine the equation of the inverse of f(x)