MATH 221 Midterm: MATH 221 KSU s18Exam 2sol

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Math 221 exam 2 february 27, 2018. Please make sure that your cell phone is turned o . You will have 75 minutes to complete the exam. Total score sin(ax) sin(bx) = 1 cos(ax) cos(bx) = 1 sin(ax) cos(bx) = 1. Sec(x) dx = ln | sec(x) + tan(x)| + c arctan x a + c a2 + x2 = 1 a dx n 1 n sinn 2(x) dx n 1 n cosn 2(x) dx. Tan(x) dx = ln | sec(x)| + c a + c a + c. 2 b secn 2(x) tan(x) cosn 1(x) sin(x) tann 1(x) Mx = a f (x)2 n n n 1 tann 2(x) dx n 1. G(x)2 dx n 2 n 1 secn 2(x) dx. My = b a x (f (x) g(x)) dx. 8: (7 points each) y = f (x) is plotted above. Find the following approximations f (x) dx. to 8.