The cosine of an angle can be computed from the following infinite series: cosx?

Question

The cosine of an angle can be computed from the following infinite series:

cosx?1?x2 ?x4 ?x6 ?........ 2! 4! 6!

Write a program that reads an angle x (in radians) from the keyboard. Then, in a function compute the cosine of the angle using first five terms of the series. Print the value computed along with the value of the cosine computed using the C++ library function.

3. The cosine of an angle can be computed from the following infinite series: cos x = 1--+ +. Q'.. Write a program that reads an angle x (in radians) from the keyboard. Then, in a function compute the cosine of the angle using first five terms of the series. Print the value computed along with the value of the cosine computed using the C++ library function.

Explanation / Answer

// Pre-processor Directives #include // Required for for use of cin, cout #include // Required for use of sin, cos, pow functions // using directives using namespace std; // PROGRAM STARTS HERE! double cosine(double angle); long factorial(long n); // Declaration of the main function int main() { double angle; // Ask for user input cout > angle; // Display the result cout

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