1) S= 10 + 16
sif CS45; s 2 is +17)
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Answered by
4
Answer:
S17=17/2*(29+16d)
17*(a+8d)
17a+136d
S16=16/2*(2a+15d)
8*(2a+15d)
16a+120d
S17-516=17a+136d-16a+20d
a+16d=a17
S17-S16=a)
Answered by
2
Answer:
s17-s16=a
Step-by-step explanation:
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