find cube of 2a+1/2a
using the formula:-
(a+1/a)^3= a^3+1/a^3 + 3(a+1/a)
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(2a+1/2a)^3 = (2a)^3 +(1/2a)^3+3(2a+1/2a)
=8a^3 + 1/ 8a^3 +3(4a^2+1 /2a)
= 8a^3 +1/ 8a^3 + 12a^2 + 3/2a
=8a^3 + 1/ 8a^3 +3(4a^2+1 /2a)
= 8a^3 +1/ 8a^3 + 12a^2 + 3/2a
webstar0:
abhi bhi nhi aya
y are u multiplying 2a*2a
yes
lcm 2a
ok
thnq
Wc
(a+b)^3 = a^3 +b^3+3(a+b)
remember it
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