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2 years ago

Find the exact value of sin(20) using the double-angle formula given: sin(0) = -4/5 , π<0<3π/2

Mathematics

1 answer:

viktelen [127]2 years ago

5 0

Answer:

I think its A

Step-by-step explanation:

Sin(20) = 0.91294525072 which in a fraction it would be 24/25

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What is the difference? startfraction 2 x 5 over x squared minus 3 x endfraction minus startfraction 3 x 5 over x cubed minus 9

weeeeeb [17]

The difference of the expression $\frac{2x^5}{x^2 - 3x} - \frac{3x^5}{x^3 - 9x}$ is $\frac{2x^5(x + 3) - 3x^5}{x(x - 3)(x + 3)}$

<h3>How to determine the difference?</h3>

The expression is given as:

$\frac{2x^5}{x^2 - 3x} - \frac{3x^5}{x^3 - 9x}$

Factor the denominators of the expressions:

$\frac{2x^5}{x(x - 3)} - \frac{3x^5}{x(x^2 - 9)}$

Apply the difference of two squares to x² - 9

$\frac{2x^5}{x(x - 3)} - \frac{3x^5}{x(x - 3)(x + 3)}$

Take LCM

$\frac{2x^5(x + 3) - 3x^5}{x(x - 3)(x + 3)}$

Hence, the difference of the expression $\frac{2x^5}{x^2 - 3x} - \frac{3x^5}{x^3 - 9x}$ is $\frac{2x^5(x + 3) - 3x^5}{x(x - 3)(x + 3)}$

Read more about expressions at:

brainly.com/question/723406

#SPJ4

6 0

2 years ago

Jun-seo notices that there are 13 right-handed players on his baseball team and 2left-handed players.

IRISSAK [1]

Step-by-step explanation:

ratio of the right handed to left handed is 13 to 2

8 0

3 years ago

ozzi

Answer:

m<SYD = 106.02°. Reason: alternate exterior angles are equal.

Step-by-step explanation:

8 0

2 years ago

What is the measure of angle BCD?<br> A. 25º<br> B. 40º<br> C. 140º<br> D. 155º

Rom4ik [11]

C. 140 (mb) ..............

6 0

3 years ago

Read 2 more answers

Show work for an opportunity to receive partial credit. Find the value of x.<br> 12 = - 4-6x-3)

masya89 [10]

Answer:

I will gladly let you have partial credit! I am putting two different ones because I am not sure why the parenthesis is at the end. Just pick whichever one looks like the question you have. Hope this helps!

Step-by-step explanation:

12 = -4-6x-3
12 = -7-6x
19 = -6x
x = -3.17

12 = -4(-6x-3)
12 = 24x+12
0=24x
x=0

7 0

3 years ago