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## Ms. Battaglia AP Calculus

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**5-6 Inverse Trig Functions: DifferentiationObjective:**Develop properties of the 6 inverse trig functions and differentiate an inverse trig function. Ms. Battaglia AP Calculus**Graphs of Inverse Trig Functions**y = arcsinx y = arccosx**Graphs of Inverse Trig Functions**y = arctanx y = arccscx**Graphs of Inverse Trig Functions**y = arcsecx y = arccotx**Evaluating Inverse Trig Functions**a. b. c. d.**Properties of Inverse Trig Functions**If -1 < x < 1 and –π/2 < y < π/2 then sin(arcsinx) = x and arcsin(siny) = y If –π/2 < y < π/2, then tan(arctanx) = x and arctan(tany) = y If |x| > 1 and 0 < y < π/2 or π/2 < y < π, then Sec(arcsecx) = x and arcsec(secy) = y. Similar properties hold for other inverse trig functions.**Solving an Equation**arctan(2x – 3) = π/4**Using Right Triangles**• Given y = arcsinx, where 0 < y < π/2, find cos y. • Given y = arcsec( ), find tan y.**Derivatives of Inverse Trig Functions**Let u be a differentiable function of x.**Differentiating Inverse Trig Functions**a. b. c. d.**Maximizing an Angle**A photographer is taking a picture of a painting hung in an art gallery. The height of the painting is 4 ft. The camera lens is 1 ft below the lower edge of the painting. How far should the camera be from the painting to maximize the angle subtended by the camera lens?**See Page 378 for a Review of Basic Differentiation Rules for**Elementary Functions.**Classwork/Homework**• AB: Read 5.6 Page 379 #5-11 odd, 17, 27, 29, 43-51 odd • BC: AP Sample