Evaluate the following using the suitable identity; (-25)^3+(10)^3+(15)^3
Answers
Answered by
51
A^3 + B^3 + C^3 = 3ABC IF A + B + C = 0
As we see that (-25) + 10 + 15 = 0
Hence (-25)^3+(10)^3+(15)^3 = 3 × (-25) × 10 × 15 = -75 × 150 = -11250
As we see that (-25) + 10 + 15 = 0
Hence (-25)^3+(10)^3+(15)^3 = 3 × (-25) × 10 × 15 = -75 × 150 = -11250
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I am Jitendra
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I'm from Hyderabad and I'm a student
I am a graduate in Bachelor of commerce
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Thanks.... someone marked that answer a brainliest but it's wrong !
Answered by
122
Hi ,
***************************************
We know that ,
If a + b + c = 0 then
a³ + b³ + c³ = 3abc
***************************************
Here ,
a = -25 , b = 10 , c = 15
Now ,
a + b + c = -25 + 10 + 15 = 0
Therefore ,
a³ + b³ + c³
= ( -25 )³ + ( 10 )³ + ( 15 )³
= 3abc
= 3 × ( -25 ) × 10 × 15
= - 11250
*** If it is really helped u .
Invite your friends to brainly.***
: )
***************************************
We know that ,
If a + b + c = 0 then
a³ + b³ + c³ = 3abc
***************************************
Here ,
a = -25 , b = 10 , c = 15
Now ,
a + b + c = -25 + 10 + 15 = 0
Therefore ,
a³ + b³ + c³
= ( -25 )³ + ( 10 )³ + ( 15 )³
= 3abc
= 3 × ( -25 ) × 10 × 15
= - 11250
*** If it is really helped u .
Invite your friends to brainly.***
: )
Thanks bro!
Most Welcome
I think ur answer is wrong
You can check as well.
the answer is 11250 bro
yeh....Its wrong
answer is - 11250 , typing error
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