Use Mathematical Induction to prove the sum of Arithmetic Sequences n a j 1 d 2 n 2 j 1 2a n 1 d Hint First write down what P 1 says and then prove it Then write down what P k 1 says and prove that using the fact that P k is true P 1 says a j 1 d j 1 k 1 P k 1 says a j 1 d j 1 Write your proof on paper and upload a photo of it