Q.

Sum of the series 11n−1+13n−3+15n−5+.....+1n−11  is

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

2n−1n−1

b

2n−1n

c

2nn−1

d

2nn

answer is B.

(Unlock A.I Detailed Solution for FREE)

Detailed Solution

Sn=1n[n1+n(n−1)(n−2)3+n(n−1)(n−2)(n−3)(n−4)5+.....] =1n[nC1+nC3+nC5+....]=1n[C1+C3+C5+....]=1n2n−1 .
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Online Course for IIT JEE
Best Online Course for NEET
Best Online Course for CBSE
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Online Course for IIT JEE
Best Online Course for NEET
Best Online Course for CBSE
whats app icon