nth TERM OF AN AP IS 8+7n FIND THE SUM OF ALL TERMS FROM 5 th TO 24th TERM?
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The nth term of AP is 8+7n
so the first term will be 8+7(1)=15
and the 24th term will be 8+7(24)=176
We know that the sum of first n terms of an AP is given by n(a+l)/2
where a is first term and l is last term.
So here Sum is 24(15+176)/2=2292 Ans
Hope it helps.
The nth term of AP is 8+7n
so the first term will be 8+7(1)=15
and the 24th term will be 8+7(24)=176
We know that the sum of first n terms of an AP is given by n(a+l)/2
where a is first term and l is last term.
So here Sum is 24(15+176)/2=2292 Ans
Hope it helps.
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