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devlian [24]
3 years ago
11

Verify sin4 x- sin2x = cos4x – cos2x is an identity

Mathematics
1 answer:
Andrej [43]3 years ago
6 0

Step-by-step explanation:

sin⁴ x − sin² x

Factor:

(sin² x) (sin² x − 1)

Pythagorean identity:

(1 − cos² x) (-cos² x)

Distribute:

-cos² x + cos⁴ x

cos⁴ x − cos² x

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A local movie theater charges $12 for an adult ticket and $10 for a child's ticket. a group of eight people spent a total of $86
oksian1 [2.3K]
3 adults and 5 kids. 

You can get this by setting up the following system of equations.

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7 0
3 years ago
Sarah uses 9.1 pints of blue paint and white paint to paint her bedroom walls. 4 5 of this amount is blue paint, and the rest is
bonufazy [111]

Answer:Amount of white  paint used by Sarah =1.82 pints

Step-by-step explanation:

Amount of  blue paint and white paint to paint her bedroom walls.=9.1 pints

Amount of  blue paint used =4/5 x 9.1=7.28 pints

Amount of white  paint used=Amount of  blue paint and white paint to paint her bedroom walls -Amount of  blue paint used

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4 0
3 years ago
Which table correctly converts inches to feet​
Andre45 [30]

Answer:

the third table

Step-by-step explanation:

Hope this helps and plz mark as brainliest!

6 0
3 years ago
Read 2 more answers
Help due in 30 min!!!!!!!!!!!!!!!
kvasek [131]
The answer is no bc they all have the same x coordinate and therefore fail the vertical line test
6 0
3 years ago
A recipe calls for 1/4 cup of apples and 3/8 cup of peaches. how many total fruit will Be used it the recipe. (I'm to lazy to tr
Zina [86]

Answer:

5/8

Step-by-step explanation:

1/4 (2/2)=2/8

3/8 (already simplified)

2/8+3/8=5/8

7 0
3 years ago
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