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**Unformatted text preview: **u + e-3 u and simplify your answer. Section 3.3: Derivatives of Trigonometric Functions 4. (6 pts) Find equations of the tangent line and normal line to the curve x 4 + y 4 = 17 at (1 , 2). Express your results in y = mx + c form. 5. (8 pts) Find dy dx for the following functions: (a) xe y = x-y (b) x sin y + y sin x = 1 6. (6 pts) (a) Find the derivative of y = arcsin √ 1-2 x and simplify your answer. (b) Find the derivative of y = arctan √ 1-x and evaluate it at x =-3....

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