function f is defined by f(x)=4sin(x)+9/(1+sin(x)) with 0<=x<=pi 1)Evaluate the first and second derivative of f. 2)Find and classify the stationary points of the funtion 3)Find the greatest and least values of f(x)
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Originally Posted by goaway716 function f is defined by f(x)=4sin(x)+9/(1+sin(x)) with 0<=x<=pi 1)Evaluate the first and second derivative of f. 2)Find and classify the stationary points of the funtion 3)Find the greatest and least values of f(x) ok, start by letting us see what you got for f'(x) ...
dy/dx=4cos(x)-9cos(x)/(1+sinx)^2 struggling with the second derivative for the first part of the question
Your looks fine to me You can use the quotient rule on the second term.
Last edited by e^(i*pi); Mar 13th 2010 at 05:35 AM. Reason: changing notation
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