In an A. P. if a = 2 and t = 12, find t2, t3, t4
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Answered by
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Answer:
plz Mrk as brainliest
Step-by-step explanation:
a=2
t
5
=12
⇒a+4d=12
⇒2+4d=12
⇒4d=12−2
⇒4d=10
⇒d=
4
10
∴d=
2
5
t
2
=a+d
=2+
2
5
=
2
4+5
=
2
9
=4.5
t
3
=a+2d
=2+2×
2
5
=2+5=7
t
4
=a+3d
=2+3×
2
5
=2+
2
15
=
2
4+15
=
2
19
=9.5
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