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Len [333]
3 years ago
9

Calcule senx, sabendo que cosx= -√3/3 e π

Mathematics
1 answer:
exis [7]3 years ago
8 0
Sendo sen x= -3<span>/5 e </span>π<span> < x < 3π/2, </span>calcule:? ... Pedem-se várias funções trigonométricas,sabendo<span>-se que </span>senx<span> = -</span>3<span>/5 e que "x' está no seguinte intervalo: PI < x < 3PI/2 ---Veja que esse ... cosx = +-4/5 -----mas, como no 3º quadrante o </span>cosseno<span> é negativo, então temos que: .... Se </span>cos<span> x = </span>3<span>/5 e 3π/2 < x < 2π , </span>calcular<span> sen(</span>3x<span>)?.</span>
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Transform the equation formulated into standard form ax²+bx+c=0​
nekit [7.7K]

Answer:

ax^2 + bx + c = 0

Here is a specific example:

5x^2 - 3x + 2 = 0

In other words:

You have zero on the right.

On the left, you have the powers of “x” in descending order.

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2 years ago
Help I’ll mark brain list
Marat540 [252]

Answer:

23

Step-by-step explanation:

i think i hope it help

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3 years ago
How do you get 85 tens in 23 ones in standard form ?
Andrew [12]
The answer is 873 hope this will help you.
7 0
3 years ago
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Drina wrote the system of linear equations below.
zalisa [80]

Answer:

Option c, A square matrix

Step-by-step explanation:

Given system of linear equations are

3x-2y=-2\hfill(1)

7x+3y=26\hfill(2)

-x-11y=46\hfill(3)

Now to find the type of matrix can be formed by using this system

of equations

From the given system of linear equations we can form a matrix

Let A be a matrix

A matrix can be written by

A=co-efficient of x of 1st linear equation    co-efficient of y of 1st linear equation   constant of 1st terms linear equation

co-efficient of x of 2st linear equation   co-efficient of y of 2st linear equation  constant of 2st terms linear equation

co-efficient of x of 3st linear equation   co-efficient of y of 3st linear equation    constant of 3st terms linear equation           3\times 3

which is a 3\times 3 matrix.

Therefore A can be written as

A= \left[\begin{array}{lll}3&-2&-2\\7&3&26\\-1&-11&46\end{array}\right] 3\times 3

Matrix "A" is a 3\times3 matrix so that it has 3 rows and 3 columns

A square matrix has equal rows and equal columns

Since matrix "A" has equal rows and columns Therefore it must be a square matrix

Therefore the given system of linear equation forms a square matrix

7 0
2 years ago
Read 2 more answers
A box is 12 cm wide 12 cm long and 15 cm tall what is the total surface area of 4 such boxes
Mnenie [13.5K]
Surface area = 2(12*12+15*12+15*12) = 1008

1008 * 4 = 4032
4 0
3 years ago
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