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
e-lub [12.9K]
3 years ago
11

Rewrite with only sin x and cos x.

Mathematics
1 answer:
aivan3 [116]3 years ago
5 0

Answer:

cos x (2 sin x − 1)

Step-by-step explanation:

sin(2x) − cos x

Use double angle formula.

2 sin x cos x − cos x

Factor.

cos x (2 sin x − 1)

You might be interested in
Explain how to write a quadratic equation given the following three points on the graph (5,31) (3,11) (0,11)
masha68 [24]

Given:

The graph of a quadratic function passes through the points (5,31) (3,11) (0,11).

To find:

The equation of the quadratic function.

Solution:

A quadratic function is defined as:

y=ax^2+bx+c            ...(i)

It is passes through the point (0,11). So, substitute x=0,y=11 in (i).

11=a(0)^2+b(0)+c

11=c

Putting c=11 in (i), we get

y=ax^2+bx+11               ...(ii)

The quadratic function passes through the point (5,31). So, substitute x=5,y=31 in (ii).

31=a(5)^2+b(5)+11

31-11=a(25)+5b

20=25a+5b

Divide both sides by 5.

4=5a+b                  ...(iii)

The quadratic function passes through the point (3,11). So, substitute x=3,y=11 in (ii).

11=a(3)^2+b(3)+11

11-11=a(9)+3b

0=9a+3b

Divide both sides by 3.

0=3a+b                 ...(iv)

Subtracting (iv) from (iii), we get

4-0=5a+b-3a-b

4=2a

\dfrac{4}{2}=a

2=a

Putting a=2 in (iv), we get

0=3(2)+b

0=6+b

-6=b

Putting a=2,b=-6 in (ii), we get

y=(2)x^2+(-6)x+11

y=2x^2-6x+11

Therefore, the required quadratic equation is y=2x^2-6x+11.

7 0
2 years ago
30 POINTS!!!! EXPLAIN!
Reptile [31]
Answer:

f(x+2)=3x+10

Explanation:

f(x+2) means replace all the  xs  with  (x+2)

f(x)=3x+4

f(x+2)=3(x+2)+4

Now simplify

f(x+2)=3x+6+4

f(x+2)=3x+10

7 0
3 years ago
Help please will give brainliest ​
vampirchik [111]

Answer:

R=0.25

Step-by-step explanation:

Y=RX

2=R×8

2/8=8R/8

R=0.25

7 0
3 years ago
HELPP YALL! I WILL MARK BRAINIEST!! LOOK AT THE PICTURE!!
UNO [17]

Answer:

So we know the total is 34

B to C will be 15 so that's around half the total

So let's subtract the given part from the total

34 = 15 = 19

AB = 19

4 0
3 years ago
The diameter is the axis of symmetry of a circle. True or false. Please give a counterexample if it is FALSE
Gekata [30.6K]
True.
 The diameter is the axis of symmetry of a circle.
 The diameter divides the circle into two equal parts. Therefore, it can be considered an axis of symmetry. Everything on the right of the diameter is the same as everything on the left of the diameter.
 answer
 True.
6 0
3 years ago
Other questions:
  • If y varies directly with x when y=1/3 and x = 12, find x if y is 4.
    15·1 answer
  • there are two factors of -36 such thatone factor is 11 less than half of the other factor. choose all the pairs of these factors
    11·1 answer
  • Find the area.<br> 7.2 km<br> 4.4 km<br> 5.3 km<br> 2 km
    7·1 answer
  • Sydney’s teacher says she may have her report card percentage based on either the mean or the median and she can drop one test s
    6·1 answer
  • O, R and S are points in the same horizontal plane. /OR/ = 20m and /OS/= 32m.The bearing of R and S from O are 030° and 135° res
    10·1 answer
  • Ed's new car has a value of $23,500, but it is expected to depreciate at a rate of 7.5% per year. What is the value of Ed's car
    11·1 answer
  • Will give brainliest
    10·1 answer
  • Please answer correctly! I will Mark you Brainliest!
    11·2 answers
  • Whats the answer giving brainliest :))))) lol
    10·1 answer
  • If Brian is driving 50 miles per hour how far did he drive​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!