Insert five numbers between 8 and 26 such that the resulting sequence is an A.P.

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Precalculus

NCERT Class 11 - Math

Chapter 9

Sequences and Series

Section 2

Sequences

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Video Transcript

number 14. In which we need to insert Five numbers between eight and 26. eight and 26 says that the resulting second becomes in A. P. So let us write the five terms are even too a three A. For and a five. So in this case this becomes a. That it first term and this becomes L. That is last time. So we have formula for Lester that is A plus And -1 in two d. From here. We will be getting 26 equal to eight plus and minus went into D. And one more thing. Uh and will be equal to 123-4567 and will be equal to seven. Demon. Be equal to 26 -8 by D. Offly 26 -8 and -1. 26 -8 is 18 By end -127. The six So they becomes equal to three. So we have The equal to three, we have equal to eight. So that trump will be even is the second term a place de that is 11 A two is the third term a place duty. That is eight list 6 14. A three is the 4th term to a place td People three D. Will be equal to eight plus 9 17. And a fool is it after a plus 40? No Is it plus for the that is 12 spending And a 5 15. Eight plus five D. Eight plus. Mhm. That is 23. So these are, yeah terms. Thank you.

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