if a,b,c,d,e,f are in AP then (e-c) equals toa)2(c-f)b)2(d-b)C)2(f-d)D)2(d-c)
ashish , 5 Years ago
Grade 12
Magical Mathematics[Interesting Approach]> if a,b,c,d,e,f are in AP then (e-c) equal...
2 Answers
Aditya Gupta
Last Activity: 5 Years ago
hello ashish. tnx 4 d ques.
let the common difference of the AP be m.
so, c + m= d
and d+m= e
add these eqns we get
e – c= 2m
or e – c= 2(d – c)
option D
kindly approve :)
Sai Soumya
Last Activity: 5 Years ago
According to me the answer will be option d
FORMULA:
If a,b,c are in AP,
then 2b=a+c
Apply this , u will get the answer
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