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
Nata [24]
3 years ago
15

Use the unit circle to find sec (-90)

Mathematics
1 answer:
andreyandreev [35.5K]3 years ago
4 0

Using the unit circle, you can visualise the secant as follows:

  1. Draw the vertical line passing trough (1,0)
  2. Extend the radius until it meets this line at point P
  3. The length of OP is the secant of your angle.

Since -90 means that the radius points downwards, it means that the radius is vertical as well, and thus it never meets the vertical line through (1,0).

Thus, the secant is not defined at -90.

In fact, if we switch back to the function notation, we can confirm this claim, since we have

\sec(x)=\dfrac{1}{\cos(x)}\implies \sec(-90)=\dfrac{1}{\cos(-90)}=\dfrac{1}{0}

which is undefined.

You might be interested in
A piece of wire 24 ft long is cut into two pieces. One piece is used to form a square, and the remaining piece is used to form a
abruzzese [7]

Answer:

SAY WHAT

Step-by-step explanation:

5 0
3 years ago
HELP ME PLS THIS IS URGENT Drag each value to the correct location on the tables.
Natalka [10]

SOLUTION:

Given the following table:

               Show A   Show B     Total

Men     -     76           124             200

Women - 112           88          200

Relative frequency of men who watch show A: 76/200 = 0.38

Relative frequency of men who watch show B: 124/200 = 0.62

Relative frequency of women who watch show A: 112/200 = 0.56

Relative frequency of women who watch show B: 88/200 = 0.44

<h3>____________________________________</h3>

FINAL ANSWER:

               Show A   Show B  

Men    -      0.38    0.62      

Women -  0.56    0.44                  

<h3>____________________________________</h3>
4 0
3 years ago
What is StartFraction 11 Over 12 EndFraction divided by one-third? A fraction bar labeled 1. Under the 1 are 3 boxes labeled one
Sav [38]

Answer:

<h2>2 and three-fourths </h2>

Step-by-step explanation:

Given the expression \frac{11}{12}/\frac{1}{3}, the equivalent expression can be gotten as shown;

= \frac{11}{12}/\frac{1}{3}\\= \frac{11}{12}*\frac{3}{1}\\  = \frac{11}{4} \\= 2+\frac{3}{4}\\ = 2\frac{3}{4}

2 and three-fourth therefore gives the required expression

8 0
3 years ago
Read 2 more answers
A restaurant charges a mandatory 15% tip for parties containing more than 6 people. A party of 10 people was charged $52.50 as a
bogdanovich [222]

44.62 I’m not sure if I’m right

6 0
3 years ago
Im lost im not sure what to do (Math Problem) plz Help!
Daniel [21]
Hello,

Answer C x²-7≠0 ==>(x≠-√7 and x≠√7)
8 0
3 years ago
Other questions:
  • HELP! IM GOING TO GET A ZERO!!!!
    5·2 answers
  • Find the perimeter of the shape given
    10·2 answers
  • Please help asaappppppp
    7·1 answer
  • –5y– 6 – 7x = 0<br> 9y=-14x – 8<br><br> Solve by elimination
    7·1 answer
  • Given the equation (x - 1) ^ 2 + (y + 20) ^ 2 = 196 identify the center and radius
    5·1 answer
  • I know the first part i need help with to others I give brainliest
    15·1 answer
  • A tank contains 150 liters of fluid in which 20 grams of salt is dissolved. Brine containing 1 gram of salt per liter is then pu
    7·1 answer
  • Solve this one step equation<br> -6+y=2
    9·2 answers
  • Write a one step equation based on this story:
    15·1 answer
  • Simplify fully the question above
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!