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2 years ago

X− 4 ≤ 3 explain how to solve

Mathematics

2 answers:

rusak2 [61]2 years ago

7 0

Answer:

x ≤ 7

Step-by-step explanation:

1. add 4 to both sides x-4+4 ≤ 3+4

2. simplify x ≤ 7

Lyrx [107]2 years ago

3 0

Answer:

x≤7

Step-by-step explanation:

You want to isolate the variable to one side to get the answer. This is a one step inequality. You need to add 4 to both sides. x-4 +4 is x. 3+4 is 7. the Answer is x≤7

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Integrate 1 - x / x(x2 + 1) d x by partial fractions.

solniwko [45]

Answer:

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Step-by-step explanation:

step 1:- by using partial fractions

$[tex]\frac{1-x}{x(x^{2}+1) } =\frac{A(x^{2}+1)+(Bx+C)(x }{x(x^{2}+1) }$ ......(1)

step 2:-

solving on both sides

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substitute x =0 value in equation (2)

1=A(1)+0

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0 = A+B

0 = 1+B

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comparing x co-efficient on both sides (in equation 2)

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step 3:-

substitute A,B,C values in equation (1)

now

$\\\int\limits^ {} \, \frac{1-x}{x(x^{2}+1) } d x =\int\limits^ {} \frac{1}{x} d x +\int\limits^ {} \frac{-x}{x^{2}+1 } d x -\int\limits \frac{1}{x^{2}+1 } d x$