a=5 d=2 find t3 and t4
Answers
Answered by
16
Answer: 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
t
2
=4.5or4
2
1
t
3
=7
t
4
=9.5or9
2
1
Step-by-step explanation:
Answered by
20
Answer
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
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