Question

if a= 5, d=3, then what is S16=​

Answer 1

Step-by-step explanation:

Given

a = 5 , d = 3

S = n/2[3a+(16-1)3]

S16 = 16/2[3×5+(16-1)×3]

=8[15+45]

=8×60

=480

Answer 2

Answer:

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