& A.P. x 3,10,17,24 -.-- 171. find ...
Question
Fullscreen

& A.P. x 3,10,17,24 -.-- 171. find sum of Is A.P.

JEE/Engineering Exams
Maths
Solution
108
Rating
4.0 (1 ratings)
Fullscreen
( theta quad a=3 quad, d=7 cdot quad a_{n}=171 ) ( Rightarrow ) we thow ( a_{n}=a+(n-1) d ) [ 171=3+(n-1) 7 ] ? ( =25 ) ( -sin =frac{25}{2} times(6+24 times 7) Rightarrow frac{25 times 194}{2} ) 72175
Quick and Stepwise Solutions Just click and Send Download App OVER 20 LAKH QUESTIONS ANSWERED Download App for Free