if a,b,c are in a.p prove that
(1) 8b^3-a^3-c^3=3ac(a+c)
rekharr1424:
hey mohit y r u report it
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Step-by-step explanation:
It is given that a,b and c is in AP then,
a+c=2b
cubing both side
(a+c)³=(2b)³
a³+c³+3ac(a+c)=8b³
3ac(a+c)=8b³-a³-c³
I hope it helps u....
Plzzz mark it as BRAINLIEST....
hey didn't report it this time
ok and for that sorry
ok
its ok
u r in which class
i am in college
then y r u ask this question
it is of 9th or 8th standard question
tell me bro
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