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Stels [109]
2 years ago
8

Prove that

20" id="TexFormula1" title=" \frac{1 }{ \sin(x) \times \cos(x) } " alt=" \frac{1 }{ \sin(x) \times \cos(x) } " align="absmiddle" class="latex-formula">
equals 2csc2x
​
Mathematics
1 answer:
konstantin123 [22]2 years ago
3 0

Answer:

See below for proof

Step-by-step explanation:

2csc(2x)\\\\2[\frac{1}{sin(2x)}]\\ \\2[\frac{1}{2sin(x)cos(x)}]\\ \\\frac{2}{2sin(x)cos(x)}\\ \\\frac{1}{sin(x)cos(x)}

Thus, the identity is proven

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How many girls are in the marching band? And how can I turn 3/10 into a number
Anton [14]

Answer:

The answer is 40

Step-by-step explanation:

28/x=7/10

firs you need to setup this equation and solve it to get 40

there are 12 girls in the band and 28 boys in the band and I know this because 12+28=40 just like 3/10 + 7/10= 10/10

12 divided by 4 is 3

28 divided by 4 is 7

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3 years ago
What is the value of y?​
matrenka [14]

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Step-by-step explanation:

(180-54)/2=126/2=63

5 0
3 years ago
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Margarita [4]

grand coulee dam (g) contains 2.5 times as much concrete as the hover dam (h)

Therefore,

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8 0
3 years ago
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y=-1/2x+3/2

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11. Which of the following points is on the
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a

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because it's is very important

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