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BARSIC [14]
3 years ago
11

How do you simplify sin 4 theta using the double angle theory?

Mathematics
1 answer:
S_A_V [24]3 years ago
3 0
Double angle formulae involve trigonometric functions of double angles and in order to get its value you must consider the following:
-derive the double angle formula from additional formula
-write the formula for the angle in alternative form
-use the formula to write trigonometric expressions in different forms
-use the formula in the solution of trigonometric equations

And the answer would be 4sin(theta)cos(theta)cos(2theta)
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what is the rate of change for the linear relationship modeled in the table? x y −1 10 1 9 3 8 5 7 -1/2 0 1/2 2
Vesnalui [34]

Answer:

Rate of change for the linear relationship modeled is \dfrac{-1}{2}

Step-by-step explanation:

As the there is a linear relationship in the points, so all these points will be on a single straight line. Hence the slope will be same throughout all the points.

We know that, the slope of the line joining (x₁, y₁) and (x₂, y₂) is,

m=\dfrac{y_2-y_1}{x_2-x_1}

Putting the points as (-1, 10) and (1, 9), we get

m=\dfrac{9-10}{1-(-1)}

=\dfrac{9-10}{1+1}

=\dfrac{-1}{2}

Rate of change is the slope of the line joining all these points.

7 0
3 years ago
Read 2 more answers
Write the equation for the graph below.<br> PLEASE I NEED HELP !
mrs_skeptik [129]
Y= 1x+ 3
1x is the slope and 3 is the y intercept
I did rise over run to find the slope 3/3=1
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hope this helps!
5 0
3 years ago
The numbers of points scored in each basketball game are 49, 36, 61, 64, 39, 41, 43, and 39.
valentina_108 [34]

Answer:

In 25% of the games at least 55 points were scored.

Step-by-step explanation:

Percentage:

Number of desired outcomes multiplied by 100 and divided by the number of total outcomes.

In this question:

8 total games

In 2 at least 55 were scores.

100*2/8 = 100/4 = 25%

In 25% of the games at least 55 points were scored.

5 0
3 years ago
A coach for a sport picks the initial lineup of seven out of eleven players for a game. The first two are always numbers seven a
Cerrena [4.2K]

Answer:

add 11 and 7 togive you 18 and it is over 2.therefore the answer is 1/9

3 0
3 years ago
Solving equations and distributive property
Serhud [2]

Answer:

The answer is 10

Step-by-step explanation: You multiply the 2 times twenty to get 40 then multiply the 2 times 2x to get 4x then subtract fourty from both sides and you will get fourty and then divide so 40 divided by 4x equals 10.

5 0
3 years ago
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