IF 1/a,1/b,1/c are in AP,,then proove that b+c/a,c+a/b,a+b/c,,are also in AP
Aditya sharma , 7 Years ago
Grade 11
Magical Mathematics[Interesting Approach]> IF 1/a,1/b,1/c are in AP,,then proove tha...
1 Answers
Arun
Last Activity: 7 Years ago
given: 1/a , 1/b and 1/c are in AP
multiplying each term by (a+b+c) will also result as an AP.
(a+b+c) / a , (a+b+c)/b and (a+b+c)/c must form an AP
subtracting 1 from each term is also an AP
therefore
(a+b+c) / a -1 , (a+b+c)/b -1 and (a+b+c)/c -1 is also an AP.
therefore (b+c)/a , (a+c)/b and (a+b)/c is an AP.
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