Can someone help me with 42 divided by 9

Mnenie [13.5K]

By using properties for trigonometric functions and trigonometric expressions, we find that the exact value of the sine of the angle 5π/12 radians is $\frac{\sqrt{2+\sqrt{3}}}{2}$ .

<h3>How to find the exact value of a trigonometric expression</h3>

Trigonometric functions are trascendent functions, these are, that cannot be described algebraically. Herein we must utilize trigonometric formulae to calculate the exact value of a trigonometric function:

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 - \cos \frac{5\pi}{6} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \cos \frac{\pi}{6} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \frac{\sqrt{3}}{2} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{2+\sqrt{3}}{4} }$

$\sin \frac{5\pi}{12} = \frac{\sqrt{2+\sqrt{3}}}{2}$

By using properties for trigonometric functions and trigonometric expressions, we find that the exact value of the sine of the angle 5π/12 radians is $\frac{\sqrt{2+\sqrt{3}}}{2}$ .

To learn more on trigonometric functions: brainly.com/question/15706158

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7 0

1 year ago

1) Which expression is equivalent to 8x - 2y + x + x

andrey2020 [161]

Step-by-step explanation:

8x - 2y + x + x

8x - 2y + 2x

10x - 2y

D 10x - 2y

So D Option is the correct answer

5 0

3 years ago

Petra fills a small cardboard box with sand. The dimensions of the box are 3 inches by 4 inches by 2 inches. What is the volume

mr Goodwill [35]

Answer: 24 in³

Step-by-step explanation:

You know that the dimensions of the box are:

3 inches.

4 inches.

2 inches.

As each face of the cardboard box is a rectangle, you can conclude that it has the form of a rectangular prism.

Therefore, to calculate the volume of the box, you must multiply the dimensions given in the problem.

Therefore, you obtain that the volume of the box is:

$V=(3\ in)(4\ in)(2\ in)\\V=24\ in^3$

8 0

3 years ago

Help ASAP I will mark as brainlisyt thing

Ann [662]

Answer:

The last choice.

Step-by-step explanation:

Logically that’s the only viable choice, he clearly isn’t handsome, he does appreciate the landlord’s daughter, and he never shared any traits that would make him “a good robber”.

8 0

3 years ago

Read 2 more answers

Find f(3) for f(x)=−5x−2 A. -10 B. -15 C. 13 D. -17

Travka [436]

Answer:

f(3) = -17

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -5x - 2

f(3) is x = 3

Step 2: Evaluate

Substitute in x: f(3) = -5(3) - 2
Multiply: f(3) = -15 - 2
Subtract: f(3) = -17

4 0

3 years ago