Math, asked by vaishnavi122, 1 year ago

plz ans to be brainlist

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gaurav2013c: what to find

Answers

Answered by gaurav2013c
1
Since x-a is a factor of given polynomial,

a is zero of given polynomial.

By Remainder theoram,

P(a) = 0

=> (a) ^3 - a(a)^2 +(6-a) = 0

=> a^3 - a^3 +6 - a = 0

=> 6 - a = 0

=> a = 6

gaurav2013c: There is nothing to find in Remainder
vaishnavi122: No remainder will not 0
gaurav2013c: Take a Example,,, we know that 5 is a factor of 25, So If we divide 25 by 5, the Remainder will be 0
gaurav2013c: same is with this question
gaurav2013c: I think that we have to find the value of a
vaishnavi122: but I don't think
gaurav2013c: ok.... do whatever you want.....
vaishnavi122: ok
siddhartharao77: Cool bro, I think we have to find the value of a @Vaishnavi.
vaishnavi122: ok
Answered by siddhartharao77
1
Given f(x) = x^3 - ax^2 + (6 - a).

if x - a = 0, then x = a.

To know the remainder when f(x) is divided by x - a.

Plug in x = a in f(x), we get

f(a) = a^3 - a(a)^2 + (6 - a)

      = a^3 - a*a^2 + 6 - a

      = a^3 - a^3 + 6 - a

     = 6 - a.


Hope this helps!
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