2) Find the sum of 7, 11, 15, 19,.. p .. up to 60 terms
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Answer:
a = 7
d = 11 - 7 = 4
n = 60
Step-by-step explanation:
sn = n/2 + 2a + ( n - 1 ) d
s60 = 60/2 + 2(7) + ( 60 - 1 ) 4
s60 = 30 + 14 + 59x4
s60 = 44 + 236
s60 = 280
sum of 60terms are 280
tq..
i hope it help u
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