2 years ago

Csc^2 xcos^2 x=csc^2 x-1 prove the identity

Mathematics

1 answer:

pochemuha2 years ago

6 0

Answer:

Step-by-step explanation:

Hello

$csc^2(x)-1=\dfrac{1}{sin^2(x)}-1=\dfrac{1-sin^2(x)}{sin^2(x)}\\=\dfrac{cos^2(x)}{sin^2(x)}=cos^2(x)csc^2(x)$

hope this helps

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yulyashka [42]

Answer:

SE=$128.13

Step-by-step explanation:

-Given the sample mean is $34,250 and standard deviation is $2,050 with n=256:

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$SE=\frac{s}{\sqrt{n}}$

Where s is the sample standard deviation.

#We substitute our values to solve for SE:

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2 years ago

Given: 3x+52=13<br> Prove: x = 7<br> write a two column proof

vivado [14]

The answer x = 7 is false here is why.

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This further simplifies to solution,

$x=-\dfrac{39}{3}\Longrightarrow\boxed{x=-13}$

Hope this helps.

r3t40

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2 years ago

Which expression has a value that is equivalent to 5n + 13 when n=−5 ?

Paladinen [302]

The answer is the second one! n^2 +13

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2 years ago

A garden that is 24 ft by 14 ft has a walkway that is 4 ft wide around it. What is the amount of fencing needed to surround the

SCORPION-xisa [38]

The garden is 24 ft by 14 ft
The walkway stretches all the way around the garden
The walkway is 4 ft wide

Perimeter is found by adding the length of the four sides so this would be 24 + 14 + 24 + 14 = 76
24 + 24 = 48
14 + 14 = 28
48 + 28 = 76

I don't know for sure but I think the length would be 34 using the length formula
p / 2 - w
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I have no clue though. A picture would make it easier

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I think its a. Good luck!

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