CBSE Class 10 Answered
ARITHMETIC PROGRESSION..............
Asked by krithika.rrrr | 05 May, 2009, 12:39: AM
Expert Answer
pl clarify whether the terms of the A.P. are
a,2a,b,(a-6-b)
If they are so,
then we proceed like this.
The common difference d between any two consecutive terms of an A.P. must be equal, so
2a-a=d
b-2a=d
a-6-b-b=d
the nth term of an A.P. with first term a and common diff d is given by
a+(n-1)d
So put n =100 and you can find the 100th term.
Do get back for any further doubts.
Answered by | 05 May, 2009, 08:41: AM
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