Flag Algebra> (a^3+b^3)^2=(a^2+b^2)^3find (a/b)+(b/a)pl...
question mark

(a^3+b^3)^2=(a^2+b^2)^3\nfind (a/b)+(b/a)\nplease give the solution

Shrey , 11 Years ago
Grade 11
anser 6 Answers
Varun Acharya

Last Activity: 11 Years ago

dude just expand both the sides..... v get on simplification 2ab = 3(a^2)+3(b^2)....... then take 2ab on the rhs then cancelling common terms..... v get 1=3/2(a/b + b/a) i.e., 2/3= a/b + b/a.... u got???? is the answer correct??? gimme a reply....

Shrey

Last Activity: 11 Years ago

That`s right.thanks

Deepak Bohra

Last Activity: 11 Years ago

Dude I think you are right :)

MuraliKrishna Medavaram

Last Activity: 11 Years ago

(a^3+b^3)^2=(a^2+b^2)^3
then (a^3+b^3)^2=a^6[1+(b/a)^2]^3
(a^3+b^3)^2 / (a^6)=[1+(b/a)^2]^3
(1+(b/a)^3)^2=[1+(b/a)^2]^3
1+2(b/a)^3+(b/a)^6=1+3(b/a0^2+3(b/a)^4+(b/a)^6
cancelling 1+(b/a)^6 both sides we get
3(b/a)^2-2(b/a)^3+3(b/a)^4=0
dividing by (b/a)^3
3(b/a+a/b)=2
then a/b+b/a=2/3
thanks and regards
M.MURALIKRISHNA
askIITIANS FACULTY

Pratik Tibrewal

Last Activity: 11 Years ago

a^6 + b^6 + 2a^3. b^3 = a^6 + b^6 + 3a^4 b^2 + 3 a^2 b^4

=> 2 a^3 b^3 = 3 a^4 b^2 + 3 a^2 b^4
divide both sides by a^3 b^3, we get
2 = 3 a/b + 3b/a
a/b + b/a = 2/3


Thanks and Regards,
Pratik Tibrewal,
askiitians faculty,
BTech

MuraliKrishna Medavaram

Last Activity: 11 Years ago


175-448_Untitled.jpg
Thanks and Regards,
M.MURALIKRISHNA
askIITians faculty

Provide a better Answer & Earn Cool Goodies

Enter text here...
star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free

Enter text here...