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LenKa [72]
3 years ago
13

The value of cos X is 40/41 42/41 9/41 35/41

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

Answer:

I think we're probably talking about a right triangle. So just find the adjacent side and the hypotenuse.

Step-by-step explanation:

Once we are considering x \in \mathbb{R}, the range of  \text{cos}(x) is [1, -1]. Therefore, $\frac{42}{41} $ is not true.

In this exercise, we may have

$\text{cos}(x)=\frac{x}{r} =\frac{x}{\sqrt{x^2 +y^2} } $

Considering the trigonometric functions beyond the unit circle.

Or considering the definition in the right triangle:

$\text{cos}(x)=\frac{\text{adjacent}}{\text{hypotenuse}} $

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PLEASE HELP!!!
Kazeer [188]

Answer:

  a = 0

Step-by-step explanation:

The cube root (radical) is equivalent to x^(1/3). When that is divided by x^(1/3), the result is ...

  (x^(1/3))/(x^(1/3)) = x^(1/3 -1/3) = x^0

Comparing that to x^a, we find a=0.

_____

The applicable rules of exponents are ...

  \sqrt[n]{x^m}=x^{\frac{m}{n}}\\\\\dfrac{x^a}{x^b}=x^{a-b}

8 0
3 years ago
Please help! Will give Brainliest!<br><br> -1/32<br><br> 16<br><br> –4<br><br> –16
aniked [119]

Answer:

-1/32

Step-by-step explanation:

To evaluate the expression, substitute x = 2 and y = -4. Then use exponent rules to simplify. Review the rules here:

To evaluate or simplify expressions with exponents, we use exponent rules.  

1. An exponent is only a short cut for multiplication. It simplifies how we write the expression.

2. When we multiply terms with the same bases, we add exponents.

3. When we divide terms with the same bases, we subtract exponents.

4. When we have a base to the exponent of 0, it is 1.

5. A negative exponent creates a fraction.

6. When we raise an exponent to an exponent, we multiply exponents.

7. When we have exponents with parenthesis, we apply it to everything in the parenthesis.

We will use these rules to simplify.

\frac{1}{2^{-2}x^{-3}y^5} = \frac{1}{2^{-2}2^{-3}(-4)^5} =\frac{2^22^3}{(-4)^5} = \frac{2^5}{(-4)^5}\\\\ =\frac{2*2*2*2*2}{-4*-4*-4*-4*-4} = -\frac{2}{64}=-\frac{1}{32}

4 0
4 years ago
Complete the table for the given rule.<br> Rule: y=4x<br><br> x y<br> 5_<br> 3_<br> 4_
DIA [1.3K]
The answer to 5 is 20
the answer to 3 is 12
the answer to 4 is 16
5 0
4 years ago
Pls help! what is the radius of this circle?
sergij07 [2.7K]

Answer:

4

Step-by-step explanation:

because raidius is any given line from the center of the circle to the circumference

4 0
3 years ago
Find the solutions to 2x^2-7x+3=0
GarryVolchara [31]

Answer:

X=½ or 3

Step-by-step explanation:

0=2x²-7x+3

0=(2x-1)(x-3)

0=2x-1 or 0=x-3

1=2x or 3=x

½=x

4 0
3 years ago
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