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brilliants [131]
3 years ago
10

Given sinx=-3/5 and x is in quadrant 3, what is the value of tan x/2?

Mathematics
2 answers:
Liula [17]3 years ago
8 0
Solution is attached. İf right I'm happy

bezimeni [28]3 years ago
4 0

Answer:

-3

Step-by-step explanation:

In the attached image we can see the tan(x/2) relation with sine and cosine

tan(x/2)=sinx/(1+cosx)

sinx=-3/5

and from the triangle we can see that the cosine is equal to -4/5 (this triangle is also called a notable triangle of sides 3,4,5 in lenght)

tan(x/2)=(-3/5)/(1-4/5)

tan(x/2)=-3

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Frações Algébricas - 3* caso <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%2B1%7D%7B2x-4%7D%20%20%2B%20%5Cfrac%7Bx-1%7D%7B3x-6%7
Ulleksa [173]

Answer:

\dfrac{5x + 1}{6(x - 2)}

\dfrac{5x + 1}{6x - 12}

Step-by-step explanation:

Fatorizam-se os denominadores.

2x - 4 = 2(x - 2)

3x - 6 = 3(x - 2)

O minimo multiplo comum dos denominadores e

2(3)(x - 2)

\dfrac{x + 1}{2x - 4} + \dfrac{x - 1}{3x - 6} =

= \dfrac{3(x + 1)}{2(3)(x - 2)} + \dfrac{2(x - 1)}{2(3)(x - 2)}

= \dfrac{3(x + 1) + 2(x - 1)}{6(x - 2)}

= \dfrac{3x + 3 + 2x - 2)}{6(x - 2)}

= \dfrac{5x + 1}{6(x - 2)}

= \dfrac{5x + 1}{6x - 12}

4 0
3 years ago
CAN SOMEONE PLEASE HELP ME ON NUMBER 3
boyakko [2]

Answer:

36

Step-by-step explanation:

5 0
3 years ago
Nichol walks at a constant pace of 1.2 m/s and takes 15 minutes to get to school.
liraira [26]

Answer:

The difference between the distances they walked is 600 meters.

Step-by-step explanation:

Let's calculate the distance traveled by Nichol and Sakura with the following equation:

d = v*t

Where:

v: is the speed

t: is the time

The distance traveled by Nichol is:

d_{n} = 1.2 m/s*15min*\frac{60 s}{1 min} = 1080 m

And the distance traveled by Sakura is:

d_{s} = 1.4 m/s*20 min*\frac{60 s}{1 min} = 1680 m

Hence, the difference between the distances they walked is:

d_{t} = d_{s} - d_{n} = 1680 m - 1080 m = 600 m

Sakura traveled 600 meters more than Nichol.

Therefore, the difference between the distances they walked is 600 meters.

               

I hope it helps you!                    

4 0
3 years ago
What is 78.867 ÷0.9 ANSWER FAST!!
xeze [42]

Answer:87.63

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find the work done by gas?
salantis [7]

The work done by the gas when the gas expands will be 567.65 ft-lb.

<h3>What is the work done for an isothermal process?</h3>

The Pressure is inversely proportional to the volume.

Let the initial pressure and initial volume be P₁ and V₁, and the final volume be V₂.

Then the work done by the gas will be

WD = P₁ V₁ ln (V₂ / V₁)

A quantity of the gas with an initial volume of 2 cubic feet and an initial pressure of 700 pounds per square foot.

The gas expands to a volume of 3 cubic feet.

Then the work done by the gas will be

WD = 700 x 2 x ln (3/2)

WD = 1400 x 0.405

WD = 567.65 ft-lb

The work done by the gas when the gas expands will be 567.65 ft-lb.

More about the work done for isothermal process link is given below.

brainly.com/question/4218306

#SPJ1

7 0
2 years ago
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