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
erastovalidia [21]
3 years ago
9

Anyone, please help me!!!​

Mathematics
2 answers:
lianna [129]3 years ago
7 0

Answer:

Step-by-step explanation:

Hint:  1- 2sin²x = Cos 2x

LHS = 1 - 2Sin² (π/4 - Ф/2)

        =  Cos 2 *(π/4 - Ф/2)

        = Cos 2*π/4 - 2*Ф/2

         = Cos π/2 - Ф

         = Sin Ф =  RHS

mart [117]3 years ago
3 0

Answer:

RHS=sinA

Step-by-step explanation:

LHS=1-2sin^2(45-A/2)

=cos2(45-A/2)

=cos(90-A)

=sinA proved.

You might be interested in
If f(x) = 3x²+2 and g(x)=x2-9, find (f- g)(x).
Solnce55 [7]

Answer:

Step-by-step explanation:

Depending on whether or not the g(x) is x^2 or 2x, I have both ways.

If g(x) is x^2 - 9...

--> (3x^2 + 2) - (x^2 - 9) = 2x^2 + 11

If g(x) is 2x...

--> (3x^2 + 2) - (2x - 9) = 3x^2 - 2x + 11

Hope this helps!

4 0
2 years ago
PLEASE ANSWER FULL QUESTION
Komok [63]

Answer:

I don't know the answer !!! :(

8 0
2 years ago
The 4 problems distributive property thanks
n200080 [17]
Looks like all you have to do it multiply the numbers together; there is no application of the Distributive Property to these problems.
7 0
3 years ago
Write the slope-intercept form of the equation of each line. identify the slopes y-intercept.
iren [92.7K]

Answer:

1. 3,0,y=3x

2. -3/5, 1, y=-3/5x+1

3. -2/3, -4,y=-2/3x-4

4. 0, 4, y=4

5. 1, 5, y=x+5

6. 2, 0, y=2x

7. 4, 5, y=4x+5

8. 3/2, 4, y=3/2x+4

hopefully this helps :)

5 0
3 years ago
Solve for x and y.<br>x=<br>y= ​
lianna [129]

Answer:

x=1

y=7

I mean it's just a guess

6 0
4 years ago
Other questions:
  • WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!
    15·1 answer
  • Need help to write equations for 5, 6 &amp; 7
    9·1 answer
  • The number of eagles observed along a certain river per day over a two week period is listed below. What is a frequency table th
    8·2 answers
  • Greg has a container of building blocks that has 4 blocks in each row and 8 blocks in each column. How many
    12·2 answers
  • A car travels 106 miles on 4 gallons of gas. How far can it go on a full tank of 12 gallons?
    10·2 answers
  • Write the equation of the line that contains the points (2,-5) and (1,4).
    8·1 answer
  • Find the value of this expression if x = -7.<br> x2 - 1
    5·2 answers
  • ​ <br> -9/6 + (-3/5) help please tytyytytytyyty
    7·2 answers
  • What’s the sum(2r-6)+4(r-3
    14·2 answers
  • The debate team is showing a video of their recent debate. The first showing begins at 3:15 p.m. the second show is scheduled at
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!