please solve in detail  
 

Asked by Sanchit Sharma | 13th Mar, 2015, 06:29: PM

Expert Answer:

Hi Sanchit,

begin mathsize 18px style S subscript n minus 2 S subscript n minus 1 end subscript plus S subscript n minus 2 end subscript equals left parenthesis S subscript n minus S subscript n minus 1 end subscript right parenthesis minus left parenthesis S subscript n minus 1 end subscript minus S subscript n minus 2 end subscript right parenthesis equals T subscript n minus T subscript n minus 1 end subscript equals d end style

Answered by  | 13th Mar, 2015, 06:35: PM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.