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
Tresset [83]
3 years ago
13

Rewrite with only sin x and cos x Cos 2x*l+sin x

Mathematics
1 answer:
liberstina [14]3 years ago
4 0

Answer:

sin(2x) = 2sinxcosx

cos(2x) = cos2x - sin2x

sin(2x) - cos(2x) = 2 sinx cosx - (cos2x - sin2x)

sin(2x) - cos(2x) = 2 sinx cosx -cos2x + sin2x

You might be interested in
I need to find x in these two problems in the picture.
forsale [732]

Answer:

for the first one do 15 divided by 10 and the second one 18 divided by 8.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Number 18. Please?!!!!
Ksju [112]

Answer:

The womans age is 25

mothers age is 50

Step-by-step explanation:

add those up and you get 75

8 0
2 years ago
Read 2 more answers
Find the total surface area of the prism.<br><br> 13 in.<br> 9 in.<br> 15 in.<br><br> Need asap
natta225 [31]

Answer:

The surface area of a rectangular prism with length of

15, a width of 9 and a height of 13 is:

894.0000 square units.

not sure

Step-by-step explanation:

To find the surface area, use this rectangular prism surface area

formula:

Surface Area =

[(Length x Width) + (Length x Height) + (Width x Height)] x 2

Example: The surface area of a rectangular prism with length of

3 inches, width of 4 inches, and height of 5 inches:

Surface Area = [(3 x 4) + (3 x 5) + (4 x 5)] x 2

Calculated out this gives a surface area of 94 Square Inches.

(not the answer example)

3 0
3 years ago
Read 2 more answers
(69 points!) Some1 please solve. (69 points!)
MAVERICK [17]

Answer:

for the second questio it is certainly The last choice D

Step-by-step explanation:

5 0
3 years ago
If remove the zero from 0.76 would it change the value of the number
wariber [46]

Question 1:

<h3>Answer: The number does <u>not</u> change</h3>

Removing the zero from 0.76 leads to .76 which is the same as before. Both lead to 7.6 \times 10^{-1} in scientific notation.

Personally I prefer the zero up front to make the decimal point stand out easier. Of course it's just a preference, so its up to you to decide which you prefer.

===========================================

Question 2:

<h3>Answer: Yes the number changes</h3>

Taking the zero out of 10.25 leads to 1.25 which is definitely a different number (and smaller). Therefore, this zero is a significant digit compared to before.

5 0
2 years ago
Other questions:
  • The Bell family's bill at a restaurant totaled $34.62. How much tip should they leave for their waiter? The standard for tipping
    14·2 answers
  • For what values of a is the sum of the fractions 2a−1/4 and a−1/3 positive?
    6·1 answer
  • Which steps could be used to solve this story problem? The zoo has 20 birds in the enclosure. Twelve of the birds are blue, 3 ar
    5·2 answers
  • A roped-off area of width x is created around a 30- by 10-foot rectangular museum display of Native American artifacts. The comb
    9·1 answer
  • Please answer these... please
    11·1 answer
  • Identify the inverse g(x) of the given relation f(x).<br> f(x) = {(8, 3), (4, 1), (0, –1), (–4, –3)}
    9·1 answer
  • 3 kilograms of red hots and I
    5·2 answers
  • Eight times a number plus five times another number is -13. The sum of the number is 1. What are the nymber?
    6·1 answer
  • Write the equation of a line that goes the through the point (4,-2) and is
    7·1 answer
  • A system of equations is shown.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!