N arithmeticmean are inserted between the number 7 and 49 if the sum of these means is 364 then the sum of their squares isHow to calculate the sum of their squares.
Sudhanva G V , 6 Years ago
Grade 11
1 Answers
Arun
Last Activity: 6 Years ago
Dear student
a.m. between 7 and 49 = 7 + d, 7 + 2d, …....., 7+ nd
now
n/2 [14 + (n+ 1) d] = 364
also
49 = 7 + (n+ 1) d
now there are 2 equations and 2 variables n and d now you can find
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