Question

b.
If 2n + 3 is the nth term of an A.P., find (i) First term (ii)
Common difference and (iii) the 15th term.​

Answer 1

Answer:

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Answer 2

Answer:

i) an=2n+3

so a1=2*1+3

==>a1=5

ii) a2=2*2+3=7

so d=a2-a1=7-5=2

iii) so 15th term=a15=2*15+3=33

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