1. Write a C++ definition of sumEvens(n), which takes an even positive integer n and yields...

 

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1. Write a C++ definition of sumEvens(n), which takes an even positive integer n and yields the sum of the even positive integers that are less than or equal to n. For example, sumEvens(10) should return 2 +4 +6+8+ 10 = 30. For this problem, use recursion, not a loop. Do the ad- ditions directly, not via a formula. Assume that n is an even positive integer. A heading is given. int sumEvens (const int n) 1. Write a C++ definition of sumEvens(n), which takes an even positive integer n and yields the sum of the even positive integers that are less than or equal to n. For example, sumEvens(10) should return 2 +4 +6+8+ 10 = 30. For this problem, use recursion, not a loop. Do the ad- ditions directly, not via a formula. Assume that n is an even positive integer. A heading is given. int sumEvens (const int n)