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
Serggg [28]
3 years ago
10

Use double angle formulas to find the exact value of sin2x,cos2x, and tan2x

Mathematics
1 answer:
denis-greek [22]3 years ago
5 0
Sin2x = 2sinxcosx;
cos2x = (cosx)^2 - (sinx)^2;
tan2x = (sin2x)/(cos2x);

 cosx = 5/13 from formula (sinx)^2 + (cosx)^2 = 1;

=> sin2x = 120/169; 
.................................

You might be interested in
What goes on top? For the 16 and 17 ?
san4es73 [151]
The answer to the question that needs to go on the top is 33
4 0
3 years ago
Read 2 more answers
Find the area of the shape.
Zanzabum
Hope this helps with the answer to your question:)

3 0
3 years ago
To get the right color to paint the house, Wendy must
Nataly [62]

Answer:

Wendy must mix .25 with .75

Step-by-step explanation:

Because 1 is a third of 3 which makes the process for the decimals.

6 0
2 years ago
Read 2 more answers
Work out the balance for £1500 invested for 2 years at 3.7% per annum
Zigmanuir [339]
I am assuming its compound interest:-

Balance  = 1500(1 + 0.037)^2  =  £1613.05 answer
8 0
3 years ago
Lee can type 1 1/3 pages every 15 minutes. How many hours does it take him to type 10 2/3 pages
natta225 [31]

Answer:

2 hours

Step-by-step explanation:

if you can type 1 1/3 pages every 15 minutes than you can type 5 1/3 pages every hour. you divide 10 2/3 pages by how many pages Lee can type every hour and the result is 2 hours

8 0
3 years ago
Other questions:
  • Samantha and Luis are attempting to determine how many library books each seventh grade student checks out at the same time. Sam
    12·1 answer
  • Write 4050 in expanded form
    11·2 answers
  • Write the recurring decimal 0.4 as a fraction in its simplest form.
    7·2 answers
  • An oak tree is planted when it is 650 centimeters tall. What is this height in meters?
    14·1 answer
  • All items
    14·1 answer
  • Can anyone please help me with this?
    13·2 answers
  • What is the slope of the line that passes through the pair of points (-4, 1) , (5, 4)
    14·2 answers
  • 50 POINTS!!!!! PLEASE WILL MARK BRAINLIEST
    12·2 answers
  • PART B: Uber was also available for Mike to use to get home from the airport. Uber
    14·1 answer
  • HELPPP
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!