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ZanzabumX [31]
3 years ago
14

Write the expression as either the sine, cosine, or tangent of a single angle. tan5x - tan2y / 1 + tan5x tan2y

Mathematics
1 answer:
Kryger [21]3 years ago
6 0
\bf \textit{Sum and Difference Identities}
\\\\
tan(\alpha + \beta) = \cfrac{tan(\alpha)+ tan(\beta)}{1- tan(\alpha)tan(\beta)}
\qquad
tan(\alpha - \beta) = \cfrac{tan(\alpha)- tan(\beta)}{1+ tan(\alpha)tan(\beta)}\\\\
-------------------------------\\\\
\cfrac{tan(5x)-tan(2y)}{1+tan(5x)tan(2y)}\implies tan(5x-2y)
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Find x <br><br>—3(x – 4) = -9(x - 1)​
Mrrafil [7]

Answer:

x=-1/2

Step-by-step explanation:

-3(x-4)= -9(x-1)

-3x+12= -9x+9

-3x+9x= 9-12

6x= -3

x=-3/6

x= -1/2

7 0
2 years ago
Enter the number that belongs in the green box
Brilliant_brown [7]

Answer:

1

Step-by-step explanation:

Hi!

First we need to translate 2 units down. That means we need to subtract 2 from the y value. So now we have (-1,1).

For a 270 degree counterclockwise rotation the rule is to go from (x,y) to (y,-x)

So now we have (1,1). Since they're only asking for the x value, the answer is 1.

6 0
3 years ago
N Identify the next (3) numbers in the set: 6, 36, 2, 4, -30... *
sveticcg [70]

Answer:

-60, -120, -154

Step-by-step explanation:

-60, -120, -154

because

from 6 to get to 36, it is multiplied by itself.

from 36 to get to 2, it is subtracted by 34.

the pattern continues.

Can I get brainliest please? Thanks! Hope this helps!

8 0
3 years ago
Read 2 more answers
3.78÷15=? Show the work please.
alexandr1967 [171]

Answer:

how would you show work?

the answer is 0.252

Step-by-step explanation:

3 0
2 years ago
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Gus started with a number he multiplied by 8 subtracted 12 divided by 4 and added 7 to get 50 show how to work backward to find
DanielleElmas [232]

Answer:

23

Step-by-step explanation:

This equation can be derived from the question

let a represent the initial number Gus started with

{[(a x 8) - 12] / 4 } + 7 = 50

subtract 7 from both sides of the equation

[(a x 8) - 12] / 4 } = 43

Multiply both sides of the equation by 4

(a x 8) - 12] = 172

Add 12 to both sides

8a =184

Divide both sides by 8

a = 23.

6 0
2 years ago
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