Question

Find A , D and Tn ..t5= 14 and
t12=35​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

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