if-a-b-gt-0-then-prove-that-a-b-6-a-15-b-15-a-21-b-21-a-3-b-3-2-a-5-b-5-3-a-7-b-7-3-1-

Question Number 157417 by MathSh last updated on 23/Oct/21

if a; b > 0 then prove that :

\frac{{(a + b)}^{6} (a^{15} + b^{15}) (a^{21} + b^{21})}{{(a^{3} + b^{3})}^{2} {(a^{5} + b^{5})}^{3} {(a^{7} + b^{7})}^{3}} ⩾ 1

Answered by upendramajhi last updated on 23/Oct/21

Commented by Rasheed.Sindhi last updated on 23/Oct/21

O r h e h a d b o o k e d s p a c e f o r h i s a n s w e r!

Commented by mr W last updated on 23/Oct/21

p l e a s e c h e c k y o u r p e n, i t h a s n o i n k

m o r e . o r i f y o u a r e u s i n g a n i n v i s i b l e

i n k, p l e a s e t e l l u s h o w t o m a k e i t

v i s i b l e a g a i n .

Commented by Rasheed.Sindhi last updated on 23/Oct/21

H e h a s w r i t t e n w i t h w h i t e c h a l k

o n w h i t e b o a r d!