1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pshichka [43]
3 years ago
8

If we start at the point (1,0) and travel once around the unit circle, we travel a distance of 2 pi units and arrive back where

we started at the point (1,0). If we continue around the unit circle a second time, we will repeat all the values of x and y that occurred during our first trip around. Use the this discussion to evaluate the following expressions
sin (2pi + 3pi/2)
Mathematics
1 answer:
PolarNik [594]3 years ago
3 0

Answer:

-1

Step-by-step explanation:

We evaluate \sin(2\pi+3\pi/2)

In 2\pi+3\pi/2, 2\pi is a complete revolution and is the same as 0. So we have

\sin3\pi/2 = \sin(\pi+\pi/2)

One \pi is a half revolution, putting the point at (-1, 0). \pi/2 is a quarter of a revolution. A quarter circle from (-1, 0) anticlockwise is (0, -1).

The sine is the y-coordinate of a point along a unit circle.

Hence, \sin(2\pi+3\pi/2)=-1

You might be interested in
Help? Please?<br><br> Round the number to the thousandths place "79337.945573"
Ivan

\approx79337.946

7 0
3 years ago
Two sides of an isosceles triangle have lengths of 3 and 10. Find the length of the third side.
lora16 [44]

Answer:

The third side must be 10:  {3, 10, 10}; {10, 3, 3} is not possible.

Step-by-step explanation:

Everything depends on our understanding of "isosceles."

This term indicates that two sides of a given triangle are equal.

If two sides of an isosceles triangle have lengths of 3 and 10, then:

Either 1)  Two sides have length 10 and the third side has length 3.  This is certainly possible

or

2)  sides have length 3 and the third side has length 10.  This is NOT possible, since 3 + 3 adds up to 6, which is less than 10.

8 0
3 years ago
If you had 36 cookies and gave 1/2 to one friend and 1/4 to another, how many could you have left?
Ann [662]

Step-by-step explanation:

\frac{1}{2}  +  \frac{1}{4}  =  \frac{2}{4} +  \frac{1}{4}   =  \frac{3}{4}

\frac{3}{4} 36 = 27

6 0
2 years ago
Will award brainliest.
Nezavi [6.7K]
Your're lucky am going to help. Kidding. :D
All real  numbers but 3 and -3 

4 0
3 years ago
Read 2 more answers
The larger square is composed of 16 smaller squares. Find the length of the sides of Square "a".
kondaur [170]

Answer:

2.5 ft.

Step-by-step explanation:

The area of the side of each smaller square = 100 / 16 sq ft.

= 6.25 sq feet.

So the length of each smaller square =  square root of 6.25

= 2.5 ft.

6 0
3 years ago
Read 2 more answers
Other questions:
  • Whats the total cost of an item that sells for $17.00, if the sales tax rate is 7%
    5·2 answers
  • Victoria is taking a three day trip. on the first day she drove 235.6 miles. on the second day she drove 241.53 miles.if the tot
    5·1 answer
  • What context clue in the paragraph best helps in understanding the meaning of the word native?
    7·1 answer
  • What is 5 x 6/9 as a mixed number
    10·2 answers
  • I need friends <br> Drop you snap,insta,Pinterest,VSCO,email whatever of the listed things
    8·2 answers
  • PLEASEEEE HELPP MEE WITHHH NUMBERRR 10!!!!!!<br> PLEASSEEE AND I NEED A GREAT EXPLANATIOn
    8·1 answer
  • Is Amber your name? nklnlllnjlklklnklklklnklnklnklnklnklnlklkklnlknklnklnklnklnklnklnklnkl
    13·2 answers
  • Triangle FGH was dilated using a scale factor of 1/2 to create triangle PQR
    13·1 answer
  • when 3 is divided by the sum of x and 8 ,the result is the same as dividing 2 by the sum of x and 3,find the number​
    12·1 answer
  • Use the remainder theorem to find P(2) for P(x) = x^4 - 3x^3 - 6x^2 + 9 .
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!