IIT JEE PERMUTATIONS AND COMBINATIONS Find the value (s) of `r` satisfying the equation `"^69 C_...
280 views · Published 21 September 2017 · 4:02 · Indexed 10 November 2026
Channel: Doubtnut · 2017 · Education
This is the Solution of question from Cengage Publication Math Book Algebra Chapter 6 PERMUTATIONS AND COMBINATIONS 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/WcZEhO6BxR Find the value (s) of `r` satisfying the equation `"^69 C_(3r-1)-^(69)C_(r^2)=^(69)C_(r^2-1)-^(69)C_(3r)dot` ==== 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
-
4:54
JEE MAINS 2018 Two thirds of eth students in a class are boys and the rest girls. It
is known...
-
3:35
IIT JEE RELATIONS AND FUNCTIONS Find the period of
`f(x)=sinx+tanx/2+sinx/(2^2)+t a n x/(2^3)++si...
-
3:33
IIT JEE LIMITS AND DERIVATIVES Evaluate the limit:
`("lim")_(xvec0)(sqrt(2)-sqrt(1+cosx))/(sin^2x)`
-
3:33
IIT JEE LIMITS AND DERIVATIVES Evaluate the limit:
`("lim")_(xvec0)(sqrt(2)-sqrt(1+cosx))/(sin^2x)`
-
1:41
IIT JEE TRIGONOMETRIC FUNCTIONS Prove that
`(cos10^0+sin10^0)/(cos10^0-sin 10^0)=tan55^0`
-
2:52
IIT JEE INVERSE TRIGONOMETRIC FUNCTIONS Which of the following is the solution set of the equatio...
-
4:30
IIT JEE APPLICATION OF DERIVATIVES Find the equation of tangent to the curve
`y=sin^(-1)(2x)/(1+...
-
2:48
IIT JEE APPLICATION OF DERIVATIVES Find the equation of the tangent to the
`c u r v ey={x^2sin1/...