find the open intervals where the function is increasing or decreasing

Calculus
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h(r)=cot(2r); [-pi,pi]

Apr 29th, 2015

   Function is decreasing between (-pi ,- pi/2) , ( -pi/2 ,0) ,  (0 ,+pi/2) , (+pi/2, +pi)

Values of function is infinity  at  -pi , -pi/2 , 0 , pi/2 , pi

gra ph            graph of c ot

Apr 29th, 2015

regarding any doubt plz let me know I will be happy to help you .Graph of Cot.docx 

Apr 29th, 2015

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