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3 years ago

15

Rewrite this expression

" alt=" \sqrt[5]{x} " align="absmiddle" class="latex-formula">

1 answer:

Lelechka [254]3 years ago

5 0

Answer: Rewritten the expression is 5x^1/2.

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Sin theta = 24/25, cos theta > 0, Find cos(2theta)

Norma-Jean [14]

Well... you don't necessarily need to get the cosine value, in order to get the double angle

$\bf \textit{Double Angle Identities}
\\ \quad \\
sin(2\theta)=2sin(\theta)cos(\theta)
\\ \quad \\\\
cos(2\theta)=
\begin{cases}
cos^2(\theta)-sin^2(\theta)\\
\boxed{1-2sin^2(\theta)}\\
2cos^2(\theta)-1
\end{cases}
\\ \quad \\\\
tan(2\theta)=\cfrac{2tan(\theta)}{1-tan^2(\theta)}\\\\
-------------------------------\\\\
cos(2\theta )=1-2sin^2(\theta )\qquad \qquad sin(\theta )=\cfrac{24}{25}
\\\\\\
cos(2\theta )=1-2\left( \cfrac{24}{25} \right)^2\implies cos(2\theta )=-0.8432$

4 0

3 years ago

Read 2 more answers

What is the value of 273 and 280

Romashka [77]

553 because you just add those two numbers together

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3 years ago

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Bumek [7]

pls give me thank on my Question

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3 years ago

The value of y varies directly with x. When y=80, x=1/2. What is the value of y when x is 2 1/4?

spin [16.1K]

Using the formula y = kx
80 = .5k
k = 160
y = 160*2.25
y = 360

4 0

4 years ago

PLEASE HELP ASAP

dexar [7]

Answer:

A.-4x^2y^4

that the answer

3 0

3 years ago