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Svetllana [295]
3 years ago
13

Which expression is equivalent to sec2xcot2x?

Mathematics
2 answers:
Sonja [21]3 years ago
7 0

Answer:

b

Step-by-step explanation:

Gnoma [55]3 years ago
5 0

Answer:

Option B is correct answer.

Step-by-step explanation:

We need to solve the expression sec2xcot2x.

We know sec x = 1/ cos x and cot x = 1/ tan x and tan x = sin x/cos x and 1/tanx = cosx /sinx

Since in question we 2x instead of x so, replacing x with 2x and Putting values:

sec2x\,\, cot2x\\=\frac{1}{cos 2x} * \frac{1}{tan 2x} \\=\frac{1}{cos 2x} * \frac{cos2x}{sin2x}\\=\frac{1}{sin 2x}\\=csc2x

So, Option B is correct answer.

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I need help with this.
I am Lyosha [343]

Answer:

9x2 and 9x2

Step-by-step explanation:

3 0
3 years ago
i think of a number. if i divide the sum of 6 and the number by 3, the result is 4 more than one quarter of the number. find the
slega [8]

Answer:

-12

Step-by-step explanation:

Let the number be A

Given if you divide the sum of six and the number A by 3 , the result is 4 more than 1/4 of A

That’s

6+A/3 = 4+1/4 of A

6+A/3 = 4+1/4 x A

6+A/3 = 4+A/4

Cross multiply

4(6 + A) = 3(4 + A)

Distribute

4 x 6 + 4 x A = 3 x 4 + 3 x A

24 + 4A = 12 + 3A

Subtract 24 from both sides to eliminate 24 on the left side

24 - 24 + 4A = 12 - 24 + 3A

4A = -12 + 3A

Subtract 3A from both sides so the unknown can be on one side

4A - 3A = -12 + 3A - 3A

A = -12

Check

6+(-12)/3 = 4 +(-12)/4

6 -12/3 = 4 -12/4

-6/3 = -8/4

-2 = -2

6 0
3 years ago
Read 2 more answers
If you rolled two dice, what is the probability
Tatiana [17]

Answer:

1/36

Step-by-step explanation:

There's only one situation where you can roll a sum of 2 (1,1)

so the final answer is just 1/36

4 0
3 years ago
Simplify the exoression (x^3-5x^2+7x-12)÷(x-4)<br>​
kiruha [24]

Answer:

x^2-x+3

Step-by-step explanation:

You factor it out which would then make it

(x-4)(x^2-x+3)/x-4

Then you cancel out the common factor, x-4

which leaves you with x^2-x+3

4 0
3 years ago
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bulgar [2K]
To start with, draw a line say AB.
At point B, construct 60 degrees.
Bisect the angle to get 30 degrees.
Bisect the 30 degrees to get 15 degrees.
The angle opposite the 15 degrees is 165 degrees
8 0
3 years ago
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