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3 years ago

What is x squared times x squared

Mathematics

2 answers:

anzhelika [568]3 years ago

7 0

Answer : x^4
Do you need an explanation?

Elena L [17]3 years ago

3 0

Answer:

x^4

Step-by-step explanation:

the answer is x to the 4th

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Prove that 2 cos (A +45°) cos (B-45°) = cos 2A

wolverine [178]

Answer:

Step-by-step explanation:

2 cos(A+45)cos (B-45)

=2[cos A cos 45-sin A sin 45][cos B cos 45+sin B sin 45]

=2[cos A ×1/√2-sin A ×1/√2][cos B×1/√2+sin B×1/√2]

=2[1/√2(cos A-sin A)][1/√2(cos B-sin B]

=2×1/√2×1/√2 (cos A-sin A)(cos B+sin B)

=cosA cos B+cos A sin B-sin A cos B-sin A sin B

=cos A cos B-sin A sin B-(sin A cos B-cos A sin B)

=cos (A+B)-sin (A-B)

i think there should be A in place of B.

then

=cos (A+A)-sin (A-A)

=cos 2A-sin 0

=cos 2A

as sin 0=0

6 0

4 years ago

Write the first four terms of the sequence defined by An=20-30(n-1)

monitta

The first four terms of sequence is 20, -10, -40, -70

Solution:

Given that we have to find the first four terms of sequence

Given recursive formula is:

$a_n = 20 - 30(n-1)$

To find the first term, substitute n = 1

$a_1 = 20-30(1-1)\\\\a_1 = 20-30(0)\\\\a_1 = 20$

Thus the first term of sequence is 20

To find the second term, substitute n = 2

$a_2 = 20-30(2-1)\\\\a_2 = 20-30(1)\\\\a_2 = 20-30\\\\a_2 = -10$

Thus the second term of sequence is -10

To find the third term, substitute n = 3

$a_3 = 20-30(3-1)\\\\a_3 = 20-30(2)\\\\a_3 = 20-60\\\\a_3 = -40$

Thus the third term of sequence is -40

To find the fourth term, substitute n = 4

$a_4 = 20-30(4-1)\\\\a_4 = 20-30(3)\\\\a_4 = 20-90\\\\a_4 = -70$

Thus the first four terms of sequence is 20, -10, -40, -70

3 0

4 years ago

Please HELP!! 20 Points!!! Graph

lakkis [162]

Answer:

I think it is the first one. If I am wrong, sue me in the comments. If I am right, please

<h2>MARK ME BRAINLIEST.</h2>

4 0

3 years ago

There are 4 points that form a rectangle. Three of the points are: (-5 -1) (-5 3) (2<3 What are the coordinates of the fourth

faltersainse [42]

Answer:

$C = (2,-1)$

Step-by-step explanation:

Given

$A = (-5,-1)$

$B = (-5,3)$

$D = (2,3)$

Required

The coordinate of the fourth point (C)

The given coordinates indicate the rectangle is vertical/horizontal because it has similar x and y values.

The coordinate of such rectangle can be represented as:

$A = (x_1,y_1)$

$B = (x_1,y_2)$

$C = (x_2,y_1)$

$D = (x_2,y_2)$

By comparing the general coordinates with the given coordinates, we have:

$x_1 = -5$ --- see A and B

$y_1 = -1$ --- see A and C

$x_2 = 2$ ---- see C and D

$y_2 = 3$ --- see B and D

So, we have:

$C = (x_2,y_1)$

$C = (2,-1)$

7 0

3 years ago

I had 33 pictures from summer camp. I gave three pictures away to friends and I plan to divide the remaining pictures evenly be

suter [353]

33-3=30
30/5=6
There would be 6 pictures on each page

6 0

3 years ago

Read 2 more answers