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s344n2d4d5 [400]
3 years ago
15

Rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.

Mathematics
1 answer:
stich3 [128]3 years ago
5 0
We are asked to express cos^ 3 x in terms of  powers of trigonometric functions not greater than 1

cos ^ 3 x is equal to cos x * cos^2 x. 
<span>cos^2 x = 1 - sin^2 x.
</span>sin^2 x  = (1 - cos 2x) /2 

the answer is cos ^ 3 x = cos x * (1 - <span> (1 - cos 2x) /2 )</span>




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5x +7 y=-17<br> 4x – 3y = -5<br> Substitute.
Bond [772]

Answer:

(x,y) = (-2, -1)

Step-by-step explanation:

We start off by substituting the value of "x".

5x+7y=-17

x=-\frac{5}{4} + \frac{3}{4}y

We then solve 55(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17

y=-1 *Substitute the value of "y"

x= --\frac{5}{4}+\frac{3}{4}x(-1)

x=-2

\left \{ {{-17=-17} \atop {-5=-5}} \right. This works.

5 0
3 years ago
Your favorite baseball player is doing much better this year than he did last year. last year he got 5656 hits. this year he has
muminat
186,648 hits (which in baseball is pretty much impossible lol)
5 0
3 years ago
What is the midpoint of AB?
Lana71 [14]

Answer:

the answer is 0

Step-by-step explanation:

just count from -6 all the way to 8 then you will find out that the there are 15 numbers from point a to point b then count from both sides the center

6 0
2 years ago
Write the equation in the standard linear equation form (Ax+By=C) if possible. Is the equation linear? y/3+x=5
mojhsa [17]

Answer:

3x + y = 15

Step-by-step explanation:

y/3 + x = 5

You can first move the x and y variable around so it fits the standard linear equation format.

x + y/3 = 5

In order to make it look more like the standard format, you can multiply both sides of the equation by 3 to get rid of the 3 in the denominator of the y variable.  It would look like this:

3 ( x +y/3) = 3 ( 5 )

When you multiply this out, you get this:

3x + y = 15

8 0
2 years ago
What’s the answer to the problem?
aleksandr82 [10.1K]

Answer:

19

Step-by-step explanation:

if you do the checker method then you would find that

they add up to make a line which equals 180

so... the equation is (8x-7)+(x+16)=180

do the math and x=19

6 0
2 years ago
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