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Mathematics, 21.07.2019 12:30 isabellacampos4586

F(x) = cos(x) f'(x) = -sin(x) f'(π/2) = -sin(π/2) f'(π/2) = -1 my answer to this question is a. -1, but i am posting it here because several students got b. +1 as their answer. can anyone confirm the answer as a?

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F(x) = cos(x) f'(x) = -sin(x) f'(π/2) = -sin(π/2) f'(π/2) = -1 my answer to this question is a. -1,...
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