Answer:
-34
Explanation:
Set rule
T = -2(n) + 12
T23 = -2 × 23 + 12
= -34
T23=a+22d
d=T2-T1
d=8-10=-2
a(first term)=10
T23=10+22×-2
=10+(-44)
=10-44
=-34
therefore:T23=-34
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