11) If a sequence a, is decreasing and bounded below, then lim a,, glb a, a) True b) False 12) If f(a) 0 and f(z) is continuous at a, then there exists a 6 0 such that f(z) 0 for all z (a96,a 9) a) True b) False 13) If f (e a) True b) False ) is differentiable on a,b and f'(a) 0 for each z R, then f(z) L (z) for all z R a) True b) False

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11) If a sequence  a,  is decreasing and bounded below, then lim a,,   glb a,   a) True b) False 12) If f(a) 0 and f(z) is continuous at   a, then there exists a 6 0 such that f(z) 0 for all z (a96,a 9)  a) True b) False 13) If f (e a) True b) False ) is differentiable on  a,b  and f'(a) 0 for each z R, then f(z) L (z) for all z R  a) True b) False

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Question: 11) If a sequence {a,} is decreasing and bounded below, then lim a,, = glb{a,}. a) True b) False 12) If f(a) 0 and f(z)

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