Given a12=37 d=3 find a and s12
Answers
Answered by
35
Answer:
Hey mate! Here is ur answer...
Step-by-step explanation:
d = 3
a12 = 37
a + 11d = 37
a + 11×3 = 37
a + 33 = 37
a = 37 - 33
a = 4
S12 = n/2 × (a+an)
= 12/2 × (4+37)
= 6 × 41
= 246
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Answered by
0
Answer:
a=4 & S12=246
Step-by-step explanation:
a12=37
d=3
The first term is calculated as,
a+11d=37
a=37-33
a=4
The sum of 12 terms is calculated as,
S12=12/2 (2×4+11×3)
=6×(8+33)
=6×41
S12 =246
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