Tolong dibantu secepatnya, besok harus dikumpul

1) sigma (i^2 + 4) = (1^2 + 4) + (2^2 + 4) + (3^2 + 4) + (4^2 + 4)
= (1 + 4) + (4 + 4) + (9 + 4) + (16 + 4)
= 46

2) sigma (2i + 3) + sigma (3i + 7)
= Sigma (2i + 3) + (3i + 7)
= Sigma (5i + 10)
= (5.1 + 10) + (5.2 + 10) + (5.3 + 10)
= (5 + 10) + (10 + 10) + (15 + 10)
= 60