Question

If x= 8.5.1.3.6) and y = fa.b,c},
then which of the following relations are
functions from X ty?
R-65,2).(a), (3,6)]
1R ?(-5,6).(1.6),3,2).(4.c)3
(-5.a).(1,9).(3.6).Chc), C1.b)​

Answer 1

Answer:

2

Step-by-step explanation:

Given that x = 2+2^(2/3) +2^(1/3)

so x-2 2^(2/3) + 2^(1/3)

= (x-2)3 [2^(2/3)+2(1/3)]^3

use (a-b)^3= a^3 - b^3 3ab(a-b)

and (a+b)*3= a'3 + b^3 +3ab(a+b) formulae.

or x3-8- 6x(x-2) = 22 +21+3*{2 ((2/3)+

(1/3)}{2^(2/3)+2^(1/3)

or x3-8 - 6x^2 + 12x = 4 + 2 +6(x-2)

or x3- 8-6x^2 + 12x = 6 + 6x -12

or x3 6x^2 +6X = 2

hope it helps...!