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LiRa [457]
3 years ago
13

Your friend claims that the only solution to the equation sin(x)=1 is x=90 degrees. Is your friend correct? If there are more so

lutions, explain how to determine additional solutions.
Mathematics
1 answer:
Blizzard [7]3 years ago
5 0

Answer:

see below

Step-by-step explanation:

sin(x)=1

Take the inverse sin of each side

sin ^ -1(sin(x))=sin ^-1(1)

x =90 + 360n where n is an integer

We can go around the unit circle and find more solutions

When x = 450, sin 450 = 1

When x = -270, sin (-270) = 1

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MATH HELP!!!!!!!!!!!!!!!!!!!!!!!!1
Reil [10]

4(50) +3r = 365

200+3r = 365

3r =165

r = 165/3

r = 55

4 0
3 years ago
What is 2+2x4x4 i need the answer fast.
Sergeeva-Olga [200]
Hey there 

Solutions 

1) First add 
2+2 = 4 

2) Multiply answer by 4 
4 x 4 = 16 

3) multiply answer by 4 
16 x 4 = 64 

Answer = 64 

Hope this helps 
6 0
3 years ago
Read 2 more answers
Escribe la expresión para "El producto de 5 y z".
bekas [8.4K]

Answer:

5yz

Step-by-step explanation:

You multiply 5 by y and z

8 0
4 years ago
The time to complete a standardized exam is approximately normal with a mean of 70 minutes & a standard deviation of 10 minu
Gennadij [26K]

if the mean is 70 minutes, then 90 minutes is 2 standard deviations above 70. if you look at the bell curve i drew, the percent of exams that took over 90 minutes is 2.5% <span>
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7 0
4 years ago
Read 2 more answers
The string of a kite is 120 metres long and it makes an angle of 60 degree
Afina-wow [57]

Answer:

103.92 m

Step-by-step explanation:

The kite is making right angle with the ground and its string is acting as hypotenuse of right triangle.

Let the height of the kite from the ground be h meters.

Therefore, by trigonometrical ratio:

\sin \theta \:  =  \frac{height \: of \: the \: kite}{length \: of \: the \: string}  \\  \\  \sin 60 \degree \:  = \frac{h}{120}  \\  \\  \frac{ \sqrt{3} }{2}  =  \frac{h}{120}  \\  \\ h =  \frac{ \sqrt{3} }{2}  \times 120 \\  \\ h =  \sqrt{3}  \times 60 \\  \\ h = 1.732 \times 60 \\  \\ h = 103.92 \: m \\

Thus, the height of the kite from the ground is 103.92 meters.

7 0
3 years ago
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