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OpenStudy (anonymous):
what's the derivative for r^2=2a^2cos2b b :angel how could i derivate it???????
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OpenStudy (psymon):
Depends on what we're saying is or isnt a constant. Id assume a and b are constants. Are you supposed to do anythign with this or just differentiate it?
OpenStudy (anonymous):
a constant and b angel
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