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3 years ago

Secx-cosx/tanx=___? Explain pls ...?

1 answer:

6 0

$\frac{secx- cos x}{tan x}= \\ = \frac{ \frac{1}{cos x} -cos x}{ \frac{sinx}{cos x}}= \\ = \frac{ \frac{1-cos ^{2} x}{cos x} }{ \frac{sinx}{cos x} }= \\ = \frac{sin ^{2} x}{sin x}=$
= sin x

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What is the value of i4?

natima [27]

Answer:

Step-by-step explanation:

You want to know the value of i^4.

<h3>Powers of i</h3>

The fourth power of i, √(-1), can be found the same way the value of any fourth power can be found: carry out the multiplication.

i^4 = i·i·i·i = -1·i·i = -i·i = -(-1) = 1

The fourth power of i is 1.

<em>Additional comment</em>

As you can see from the evaluation process, ...

i¹ = i

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2 years ago

What is the solution of RootIndex 3 StartRoot x + 8 EndRoot = negative 4?

erica [24]

Answer: First option.

Step-by-step explanation:

Given the following equation provided in the exercise:

$\sqrt[3]{x+8}=-4$

You can follow the steps indicated below in order to find the solution of this equation:

1. Cubing both sides of the equation, you get:

$(\sqrt[3]{x+8})^3=(-4)^3\\\\x+8=-64$

2. Finally you must subtract 8 from both sides of the equation:

$x+8-8=-64-8\\\\x=-72$

You can notice that this solution matches with the first option.

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4 years ago

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Step-by-step explanation:

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3 years ago

In the following you may leave your answer as a binomial or multinomial coefficient. In each case give a brief justification for

Simora [160]

Answer: a) 792 ways b) 13⁷.

Step-by-step explanation:

Since we have given that

Number of apples to be given = 5

Number of bananas to be given = 7

Number of people = 12

So, Number of ways that each person gets a pieces of fruit is given by

$\dfrac{12!}{7!\times 5!}\\\\=792\ ways$

b) If the number of people = 13

Number of apples to be given = 7

So, Number of ways would be

$13\times 13\times 13\times 13\times 13\times 13\times 13\\\\=13^7$

Hence, a) 792 ways b) 13⁷.

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3 years ago

Hii please help i’ll give brainliest

Iteru [2.4K]

Answer:

Step-by-step explanation:

the point H is (-3, 2) which fits the requirements

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3 years ago

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