What is the sum of all even number from 2 to 100?
Answer (1)
Answer:2550Step-by-step explanation:Use the formula for an arithmetic series:n = (l−a)/d + 1where a is the first term, l is the last term, and d is the common difference.In this case, l is 100, a is 2, and d is 2.The number of terms is:n = (l−a)/d + 1n = (100−2)/2 + 1 n = 49 + 1 or 50 termsThe sum of these 50 terms is given by:(n/2)(a + l)(50/2)(2 + 100)25 * 102 = 2550
