The computation of the Cosine Series

can be done based on the

**SineSeries.java**program in the post below with some minor changes (still assuming that**CosineSeries.java**is also in the same package where**SineSeries.java**is). Here we compute the value of the series at*x*= 45°, which is π/4 in radian measure.We first define a class called

**CosineSeriesSummation**for summing the series upto a specified number of terms as below:Next we invoke the method defined above in the

**CosineSeries**class which contains the**main()**method as:
Have you actually tested this?

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