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Varvara68 [4.7K]
2 years ago
15

\frac{2}{|1 - x| |1 - x| } " alt=" \frac{2}{|1 - x| |1 - x| } " align="absmiddle" class="latex-formula">
expand the above question ​
Mathematics
1 answer:
ANEK [815]2 years ago
7 0

Answer:

\frac{2}{ |1 - x| \times  |1 - x|  }  =

=  \frac{2}{ |1 - x|^{2}  }

or

\frac{2}{ |1 - x| \times  |1 - x| }  =

=  |1 - x|  \times  |1 - x|  = 0

=  |1 - x |^{2}  = 0

=  |1 - x|  = 0

= 1 - x = 0

= ( - x) = ( - 1)

x = 1

Step-by-step explanation:

I Hope This Help

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What is the slope between the points (3,5) and (-2,-4)
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9/5 is the answer, hope this helps


4 0
3 years ago
(a) What is wrong with the following equation? x2 + x − 42 x − 6 = x + 7 (x − 6)(x + 7) ≠ x2 + x − 42 The left-hand side is not
jeka94

Answer:

Attached please find answer

Step-by-step explanation:

= (x² + x - 42) / (x - 6)

= [x² + (7x - 6x) - 42] / (x - 6)

= [x² + 7x - 6x - 42] / (x - 6)

= [(x² + 7x) - (6x + 42)] / (x - 6)

= [x(x + 7) - 6(x + 7)] / (x - 6)

= [(x + 7)(x - 6)] / (x - 6)

= x + 7 → when x approches 6

= 6 + 7

= 13

Other method:

Lim   (x² + x - 42) / (x - 6)

x→ 6

When x → 6, there is an indeterminate expression because: 6 - 6 = 0

Do you know the l'Hôpital's rule, when x → a:

Lim [ f(x) / g(x) ] = Lim [ f'(x) / g'(x) ]

f(x) = x² + x - 42

f'(x) = 2x + 1

g(x) = x - 6

g'(x) = 1

= f'(x) / g'(x)

= (2x + 1)/1

= 2x + 1 → when x approches 6

= 12 + 1

= 13

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