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
laila [671]
3 years ago
7

Please help me!! 100 points!! A student solved the equation sin2x/cosx =2 ‘ 0=< x =< pi and found an answer of pi/2 descri

be the students error in 2-3 sentences
Mathematics
1 answer:
muminat3 years ago
3 0

Answer:

sin(2x)/cos x = 2sin x*cos x/ cos x = 2 sin x = 2

sin x = 1

x = pi/2

but cos pi/2 = 0

so the given equation is indeterminate for x = pi/2

Step-by-step explanation:

You might be interested in
C.) y=x2 + 4x - 1<br> a=<br> b =<br> c.<br> Vertex<br> Axis of Symmetry:
Savatey [412]

Answer:

a=1

b=4

c=-1

Axis of cemetry and vertex:x=-2

Step-by-step explanation:

x=-b/2a

x=-4/2(1)

x=-2

3 0
4 years ago
Someone please tell me the answer and how you got it :(
Nimfa-mama [501]
The ratio of wilma/teddy is 6/5 , if teddy has X then she has 21+X so you can solve X in this equation 6/5 = (21+x)/x
8 0
3 years ago
What is the value of x in the equation below?<br><br> 1+2e^x+1=9
olga2289 [7]
I am sure the correct answer is x=0.38629436…hope this help you
8 0
3 years ago
Read 2 more answers
Point J is located at (2,5)(2,5) and point K is located at (4,19)(4,19).
Anni [7]
We have the coordinates
J (2,5)
K (4,19)

Since we are to find the point that partitions the line segment into 3:2 ratio, we have 5 equal parts of the line segment. So,

Get the horizontal distance:
4 - 2 = 2
Divide by 5
2/5
Multiply by 3
2/5 x 3 = 1.2
Add this to the x coordinate of J
2 + 1.2 = 2.2

Get the vertical distance:
19 - 5 = 14
Divide by 5
14/5
Multiply by 3
14/5 x 3 = 8.4
Add this to the y coordinate of J
5 + 8.4 = 13.4

The coordinates of the point is
(2.2,13.4)
5 0
4 years ago
tarlama is starting a section of her homework that includes a set of equation that each has only one variable term including x t
ozzi

<u>drop yall snaps i will add you guys</u>

5 0
3 years ago
Other questions:
  • which expression is equivalent to 2m(3/2m+1) +3 (5/3m-2) ? A .3m^2+5m-1 B. 3/4m^2 +23/9m-6 C. 3m^2+7m-6 D. 3/4m^2+5/9m-1 please
    9·2 answers
  • Suppose the temperature outside is dropping 3 degrees each hour. Express the change in temperature as an integer after 8 hours h
    7·1 answer
  • On a 15 scale drawing of a car, one part is 88 inches long. How long will the actual car part be?
    14·1 answer
  • Let T: Rn → Rn be an invertible linear transformation, and let S and U be functions from Rn into Rn such that
    6·1 answer
  • The ratio of boys to girls in a dass in a dass is 4.3 if There are 20 boys in the class. How many are girls!​
    12·2 answers
  • A family wants to rent a car to go on vacation. Company A charges $40.50 and 11 cent per mile. Company B charges $60.50 and 15 c
    11·1 answer
  • Find the length of arc AB if the diameter of the circle is 14 cm.
    7·1 answer
  • The area between z=.34 and z=1.93
    15·1 answer
  • 41. WRITE a Real-Life Problem to fit the data shown in the GRAPH.
    5·1 answer
  • Find the measure of the missing angles .
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!