IIT JEE SEQUENCES AND SERIES If `l ,m ,n` are the three positive roots of the equation `x^3-a x^2...

32 views · Published 22 September 2017 · 2:27 · Indexed 14 November 2026

Channel: Doubtnut · 2017 · Education

Watch on YouTube

This is the Solution of question from Cengage Publication Math Book Algebra Chapter 6 SEQUENCES AND SERIES written By G. Tewani. You can Find Solution of all math questions from CENGAGE BOOK on our app DOUBTNUT for free. Download Doubtnut from - https://doubtnut.app.link/ElBJZ4aCxR

If `l ,m ,n`
are the three positive roots of the equation `x^3-a x^2+b x-48=0,`
then the minimum value of `(1//l)+(2//m)+(3//n)`
equals
`1`
`2`
`3//2`
`5//2`

==== SCORE 100% WITH DOUBTNUT ====

Doubtnut ऍप पर आप कक्षा ६ से १२ (IIT JEE तक) के NCERT and IIT JEE Mains & Advanced के मैथ/गणित के सभी सवालों के वीडियो देखिये और मुफ्त में खोजिये किसी भी गणित सवाल का जवाब - १ लाख से भी ज़्यादा सवालों के जवाब हैं Doubtnut ऍप पर.

Doubtnut App has video solutions of ALL the NCERT questions from Class 6 to 12 (including IIT JEE). You can also ask any Math question and get a video solution for FREE from a library of more than 1 Lakh Math Videos.

#jeemains2019 #iitjeemaths #cengage #cengagemaths #cengagesolution #jeemains.

==== FOLLOW US ON====

Website : www.doubtnut.com

Doubtnut PAGE: https://www.facebook.com/doubtnut

DOUBTNUT IIT JEE Group: https://www.facebook.com/groups/251747588948573

More from this channel