Question

Chapter: Arithmetric and geometric progression
Determine the AP whose 3rd term is 5 and the 7th term is 9.

Answer 1

Step-by-step explanation:

here we have

A(3) = 5

=a+(3-1)d........(1)

A(7)=9

=a+(7-1)d.......(2)

from eqn. 1 and eqn.2 we get

d=1

so putting the value of d in eqn.1 we get

a=3.

so the reqd. AP is

3,4,5,6,7,8...............

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Answer 2

Answer:

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