Question

Find the sum of the arithmetic sequence wherein a 1, = 4; n = 16; d=8​

Answer 1

Step-by-step explanation:

s=n\2{2a+(n+1)d}

=

$\frac{16}{2} (2 \times 1 + (16 + 1) \times 8$

$8 \times (2 + 17 \times 8)$

$8 \times 138$

$1104$

plz make me BRIANLENT☺

l hope is this useful to you