Is f(x)= cosx a decreasing or increasing function?

Asked by akanksha | 7th Jul, 2013, 05:54: PM

Expert Answer:

f(x) = cosx is neither a monotonically increasing nor a decreasing function. It is a sinusodial function and hence,it increased and decreased depending on which values of x you are talking about. 
 
So, for x between 0 and pi, cosx is decreasing, but between pi and 2pi it is increasing. 

Answered by  | 8th Jul, 2013, 06:19: PM

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