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18 Apr 2018
11. Let f(1) = cos r. Use the definition of the derivative to prove that f'(:1) = - sin r.
11. Let f(1) = cos r. Use the definition of the derivative to prove that f'(:1) = - sin r.
teacherrecoLv10
21 Apr 2022
Nelly StrackeLv2
19 Apr 2018
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