No products in the cart.

Find a positive value of m …

CBSE, JEE, NEET, CUET

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Find a positive value of m for which the coefficient of( x)²in the expansion (1+x)m is 6
  • 1 answers

Sivan Karthick 6 years, 11 months ago

x2 term is mc2.1m-2. x2 we know 1 power anything is 1 so mc2=6 m.(m-1)/2=6 m2-m-12=0 (m-4)(m+3)=0 m=4,-3 since m is positive so m=4
https://examin8.com Test

Related Questions

2nC2:nC3=33:10
  • 0 answers
Square of 169
  • 1 answers
Ch 1 ke questions
  • 1 answers
Find the product. (4x²) (–5³)
  • 0 answers
(3+i)x + (1-2i) y +7i =0
  • 1 answers
Express the complex number i-39
  • 0 answers

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App