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Fittoniya [83]
3 years ago
11

Let A and B be subsets of R. (a) If x ∈ (A ∩ B)c, explain why x ∈ Ac ∪ Bc. This shows that (A ∩ B)c ⊆ Ac ∪ Bc. 12 Chapter 1. The

Real Numbers (b) Prove the reverse inclusion (A ∩ B)c ⊇ Ac ∪ Bc, and conclude that (A ∩ B)c = Ac ∪ Bc. (c) Show (A ∪ B)c = Ac ∩ Bc by demonstrating inclusion both ways.
Mathematics
1 answer:
cupoosta [38]3 years ago
7 0

Answer:

answer is -3 just subtract 4 from each side

Step-by-step explanation:

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Rzqust [24]

Answer:

18 maybe

Step-by-step explanation:

4 0
3 years ago
Topic integers<br> please solve this question <br> urgent
miskamm [114]

Given:

i) 3, -5, -2, 1

ii) -1, -8, -7, -2

iii) -2, -4, 0, 2

To find:

increasing order of the given numbers.

Solution:

Increasing order: We need to start from the smallest number, then write larger number and end with the largest number.

We know that all negative numbers are less than the positive numbers and larger negative value is always the smaller one.

For example: -3 is less than -1.

i) We have,

3, -5, -2, 1

So, the increasing order of these number is -5, -3, -2, 1.

ii) We have,

-1, -8, -7, -2

So, the increasing order of these number is -8, -7, -2, -1.

iii) We have,

-2, -4, 0, 2

So, the increasing order of these number is -4, -2, 0, 2.

7 0
3 years ago
What is 100-402-05-340-03-50-405-30-40-304=304=-503=5034x<br> find X
suter [353]

Answer:

Bruh watashi wa sudeni sore ga totemo tanjunda to omoimasu! !

6 0
3 years ago
50 POINTS !!!!! HomeWorker Helperer please
Tcecarenko [31]

Answer:

1)     - 2 / (cos x + sinx)^2.

Step-by-step explanation:

1) I assume you want the derivative of (cos x - sin x) / ( cos x + sin x).

y'  =  (cosx + sinx)( -sinx - cosx) - (cosx - sinx)(-sinx + cosx)

        ---------------------------------------------------------------------------

                                 (cosx + sinx)^2

=  -sinxcosx - cos^2x - sin^2x - sinxcosx - (-sinxcosx+cos^2x+sin^2x-sinxcosx

       -------------------------------------------------------------------------------------------------------

                                     (cosx + sinx)^2

=     -2sinxcosx - 1  - ( -2sinxcosx   + 1 )   /     (cosx + sinx)^2

=      -2sinxcosx - 1  - ( -2sinxcosx   + 1 )   /     (cosx + sinx)^2

=       - 2 / (cos x + sinx)^2.

3 0
3 years ago
What is the remainder when the polynomial 5x2+10x−15 is divided by x + 5? Enter your answer in the box.
otez555 [7]
ANSWER
The remainder is
60

EXPLANATION

Let

p(x) = 5 {x}^{2}  + 10x - 15

We shall apply the remainder theorem to obtain the remainder when
p(x)
is divided by
x + 5

According to the remainder theorem, if a polynomial
p(x)
is divided by
x - a
then the remainder is
p(a)


So we set
x + 5 = 0

and solve for
x

to obtain,

x =  - 5


We now substitute -5 into the given polynomial to find the remainder.



p( - 5) = 5 {( - 5)}^{2}  + 10( - 5) - 15


This gives us,

p( - 5) = 5(25) - 50 - 15

This will simplify to,

p( - 5) = 125 - 50 - 15



p( - 5) = 60


Therefore the remainder is
60
5 0
3 years ago
Read 2 more answers
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