11. Find the 20 term of the progressions forming AP and are given as follows 12, 14, 16,
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Step-by-step explanation:
t1 = 12
t2 = 14
t3 = 16
d = t2 - t1
d = 14 -12
d = 2
Common difference (d) = 2
d = 2 , n = 20 , t1 = a = 12, t20 = ?
tn = a + (n-1) × d
tn = 12 + ( 20 - 1) × 2
tn = 12 + 19 × 2
tn = 12 + 38
tn = 50
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