Question

15th term of 3 + 5 + 7 + ........... ??????


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Answer 1

first term a=3
difference d=2
so 15 term=a+(n-1)d
                    3+14*2
                     3+28
                      31

Answer 2

heya mate

here is your answer

sol:-

3 +!4 +5 + 7 ,....

here a = 3

d = t2-t1

= 5-3 = 2

tn = a + ( n-1) d

t15 = 3 + ( 15-1) d

= 3 (14) 2

= 3 + 28

t15 = 31

i hope it helped you

thanks