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3 years ago

What is the geometric mean of 4 and 5

Mathematics

1 answer:

vladimir2022 [97]3 years ago

8 0

The geometric mean 4.472135955 hope this helps

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Please simplify the following trigonometric identity.

lesya692 [45]

<u>Examining the question:</u>

We are given the expression:

$\frac{1}{Sec(\alpha)-Tan(\alpha)}$

We know from Basic trigonometry that:

$Sec(\alpha) = \frac{1}{Cos(\alpha)}$

$Tan(\alpha) = \frac{Sin(\alpha)}{Cos(\alpha)}$

<u>Simplifying the expression:</u>

Replacing these values in the given expression, we get:

$\frac{1}{\frac{1}{Cos(\alpha)} -\frac{Sin(\alpha)}{Cos(\alpha)} }$

Since the denominator of both the values in the denominator is the same:

$\frac{1}{\frac{1-Sin(\alpha)}{Cos(\alpha)} }$

We know that $\frac{1}{\frac{a}{b} }$ = $\frac{b}{a}$ , using the same property:

$\frac{Cos(\alpha)}{1-Sin(\alpha)}$

and we are done!

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2 years ago

Read 2 more answers

The sales tax on a one-half-carat diamond ring is $76. Find the purchase price of the ring (before tax) of the sales tax rate is

NISA [10]

So.. hmmm if we take "x" to be the 100% sale price before tax, $76 is really 9.5% of that

thus $\bf \begin{array}{ccllll}
amount&\%\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
76&9.5\\
x&100
\end{array}\implies \cfrac{76}{x}=\cfrac{9.5}{100}$

solve for "x"

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3 years ago

How do polynomial identities apply to complex numbers?

Leni [432]

Answer:

Let start with what a polynomial is. Look in the step-by-step explanation.

Step-by-step explanation:

We know a polynomial has more than one term, right?

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2 years ago

Help help help help help

IceJOKER [234]

Answer:

let me take a guess and if its wrong sorry

Step-by-step explanation:

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3 years ago

Inverse variation equation that relates x and y.

Natalija [7]

Answer:An inverse variation can be represented by the equation xy=k or y=kx . That is, y varies inversely as x if there is some nonzero constant k such that, xy=k or y=kx where x≠0,y≠0 .

Step-by-step explanation:

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3 years ago