find the 21st term of series 4, 7, 10.....
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Answered by
1
Answer:
in this general formula would use a+(n-1)d
Answered by
3
Answer:
given series 4,7,10......
a1=4 , a2=7, a3=10
finding common difference
d=a2-a1
=7-4
=3
therefore the d=3
finding the 21st term
a21=a+29d
=4+29(3)
=4+87
=91
THERE FORE THE 21ST TERM IS 91
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