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malfutka [58]
3 years ago
9

Please help, which one is the correct choice?

Mathematics
1 answer:
bazaltina [42]3 years ago
5 0
222222222222 my good friend
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Let f(x) be a func. satisfying f(-x)=f(x) for all real x.if f"(x) exist, find its value.
OverLord2011 [107]

Answer:

f''(x)=f''(-x)

Step-by-step explanation:

A function satisfying the equation f(x)=f(-x) is said to be an even function. This denomination comes from the fact that the same relation is satisfied for functions of the form x^{n} with n even. Observe that if f is twice differentiable we can derivate using the chaing rule as follows:

f(x)=f(-x) implies f'(x)=f'(-x)\cdot (-1)=-f'(-x)

Applying the chain rule again we have:

f'(x)=-f'(-x) implies f''(x)=-f''(-x)\cdot (-1)=f''(-x)

So we have that function f''(x) is also an even function.

4 0
3 years ago
PLEASE HELPP!!! (look at picture)
kow [346]

Answer: 7

Step by Step explanation:

4 0
3 years ago
(4a - b)(2a - 3b) =<br><br>A 8a² + 3b²<br>B 8a² - 3b²<br>C 8a² - 10ab + 3b²<br>D 8a² - 14ab + 3b²
Alika [10]

Answer:

The answer is option D.

Step-by-step explanation:

(4a - b)(2a - 3b)

Expand the terms

We have

8a² - 12ab - 2ab + 3b²

Which is

8a² - 14ab + 3b²

That's option D.

Hope this helps you

3 0
3 years ago
HELP FAST<br><br> find the value of x.
sergeinik [125]

Answer:

81=6x+3(vertically opposite angle are equal)

81-3=6x

78=6x

x=13°

hope it helps.

6 0
2 years ago
A number, y, is equal to twice the sum of a smaller number and 3. The larger number is also equal to 5 more than 3 times the sma
xenn [34]

Answer:

2 x minus y = negative 6 and 3 x minus y = negative 5

Step-by-step explanation:

y = 2(x+3) = 2x + 6 or 2x - y = -6

y = 5 + 3x or 3x - y = -5

7 0
3 years ago
Read 2 more answers
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