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3 years ago

What is sin theta when cos theta is 0

Mathematics

1 answer:

8_murik_8 [283]3 years ago

7 0

Answer:

Divide by costheta

You get Sin(theta)/Cos(theta) + Cos(theta)/cos(theta) =0

[Sinx/cosx = tanx (a law of trigs)]

so the same as tan(theta) + 1=0

So tan(theta)=-1

Inverse tan/arctan (-1) =3/4 pi and (2pi - 3/4pi) = 7/4pi

Step-by-step explanation:

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Which of the following would be considered important in including in the summary of an experimental investigation?

Sedaia [141]

Hi There!

Answer:

A.) variables that were manipulated during the experiment

Least important to most important steps to include in a summary:

variables that were manipulated during the experiment.
list of all materials and equipment used in the experiment.
number of scientists involved in the experiment.
laboratory room number in which the experiment took place.

Hope This Helps :)

6 0

3 years ago

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Q4: Write the equation in slope-intercept form of the line that is perpendicular to

forsale [732]

Answer:

5y = x + 11

Step-by-step explanation:

Given parameters:

Equation of the line ;

y = -5x + 1

Coordinates = (2, -1)

Find the equation of a line perpendicular;

Solution:

A line perpendicular to y = -5x + 1 will have slope that is a negative inverse of the given one.

Equation of a straight line is expressed as;

y = mx + c

y and x are the coordinates

m is the slope

c is the y-intercept

So, the slope of the new line perpendicular is $\frac{1}{5}$ ;

Now let us find the y-intercept of the new line;

x = -1 and y = 2

2 = $\frac{1}{5}$ x (-1) + c

c = 2 + $\frac{1}{5}$ = $\frac{11}{5}$

The equation of the new line is;

y = $\frac{1}{5}$ x + $\frac{11}{5}$

or multiply through by 5;

5y = x + 11

5 0

3 years ago

I don’t understand this someone pls help

omeli [17]

To solve this, you need to plug in the numbers for h.

-4(-12) ≥ 8 48 ≥ 8 yes

-4(-7) ≥ 8 28 ≥ 8 yes

-4(-5) ≥ 8 20 ≥ 8 yes

-4(-3) ≥ 8 12 ≥ 8 yes

-4(-2) ≥ 8 8 ≥ 8 yes

-4(-1) ≥ 8 4 ≥ 8 no

-4(1) ≥ 8 -4 ≥ 8 no

-4(3) ≥ 8 -12 ≥ 8 no

-4(8) ≥ 8 -32 ≥ 8 no

Hope this helped!

7 0

3 years ago

A y = 3x + 2 C y=-3x + 2 B y = 3x + 2 D y = - 3 x + 1/2

shutvik [7]

for a minute i thought it was c. y = -3x + 2.

3 0

3 years ago

5^-3 expanded and simplify

ludmilkaskok [199]

5^-3 = 1/5^3 = 1/125.

6 0

3 years ago

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