# How do you find this ? #lim_(x->0)sum_(n=1)^oo(cosnx)/((4n-3)(4n+1))#

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You can find the limit by using the properties of the cosine function and series convergence. The limit evaluates to π/2.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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