College of Engineering Education 2\"1 Floor, BE Building Matina Campus, Davao City Telefax: (082)296-1084 Phone No.: (082)300-5456/3000647 Local 131 The University of Mindanao Activity 2. Solve the following problems using inverse trigonometric functions. 1. The lower edge of a picture is 4 ft., the upper edge is 9 ft above the eye of an observer. At what horizontal distance should he stand if the angle subtended by the picture is a maximum? 2. An isosceles triangle has legs 10 cm. The base decreases at the rate of 4 cmlsec. Find the rate of change of the angle at the apex when the base is 16 cm. 3. A ladder 14 ft long is leaning against a fence 8 ft high, with the upper end projecting over the fence. If the lower end slides away from the fence at the rate of 2 ft/sec, find the rate at which the angle between the ladder and the ground is changing when the upper end is just at the top of the fence. Course: CEE101(6990);2021-202 x CEE 101 BP3 - ULO3b.pdf X (1) Messenger X f (2) Facebook x Homework Help - Q&A from O x + V - O X * PDF Viewer | chrome-extension://oemmndcbudboiebfnladdacodfmadadm/https://umindanao.mrooms.net/pluginfile.php/1549244/mod_resource/content/0/CEE%20101%20B... LE 5 of 6 + 190% Let's Analyze Activity 1. Differentiate the following functions and simplify if possible. 1. y = = Arctan 4 sin x 3+5 cos x DAVAO CITY V4-x2 2. y = Arccos NIX X 1946 3. y = xV1 - 4x2 + = Arcsin 2x 4. y = Arccot x + Arctan 2+x 1-2x 5. y = (x - 1)V2x - x2 - Arccos (x - 1) 88 AMC 24"C Rain ~ 0 ) 9:59 PM 4/5/2022