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
vazorg [7]
3 years ago
8

This is a trignometry questionhope u will do for me i will mark brainliest..:)​

Mathematics
1 answer:
Anastasy [175]3 years ago
5 0

Step-by-step explanation:

\cos^{4} x -  \sin^{4} x

= ( \cos^{2} x + \sin^{2} x)( \cos^{2} x -  \sin^{2} x)

= (1 -  \sin^{2} x  + \sin^{2} x)( 1 - \sin^{2} x -  \sin^{2} x)

= 1 - 2\sin^{2} x

Note: I replaced all cos^2x terms using the identity

\cos^{2} x  = 1 -  \sin^{2} x

You might be interested in
A building contractor examined 6 floor joists in a home and found that they had the following widths:
miss Akunina [59]

Answer:

Step-by-step explanation:8 inches

89 is the answe 89

8 0
2 years ago
Need to pass this semester so please help
Aleks04 [339]
The correct answer is X= 14°
7 0
3 years ago
The polygon Q(3, 2), R(6,5), S(6, 2)
ycow [4]

Answer:

Q' (12,8) , R'( 24,20) and S' (24,8)

Step-by-step explanation:

Here, we want to get the coordinates of the image after dilating the pre-image by a scale factor of 4

What we have to do here is to multiply each of the coordinate on the pre-image by 4

We have this as;

Q' = (4*3, 2 * 4) = (12,8)

R' = (4*6, 4*5) = (24,20)

s' = (4*6, 4*2) = (24,8)

4 0
3 years ago
Whats the answer for this <br> 4b²+20b+25
WITCHER [35]
4b²+20b+25=0

Divide everything by 4 

b²+5b+ 6.25=0 

use the quadratic formula 
x= (-b+ or - √b²-4ac) /2a
x= (-5 + or - √5²-4*1*6.25) /2(1)
x= -5/2 so
in this case, b= -5/2

7 0
3 years ago
QUICK!!<br><br> Which equation represents the relationship shown in the graph??
Dmitriy789 [7]

Answer:

y=1/2x

Step-by-step explanation:

Look at the graph, all you need is the first point.

Y is at 4 and X is at 2. We can divide y/x to get 4/2=1/2x

3 0
2 years ago
Read 2 more answers
Other questions:
  • Students in the school band are selling calendars they earn 0.40 on each calendar They sell. Their goal is to earn more than 327
    10·1 answer
  • lily has 1/2 of her sandwich left. She wants to give an equal piece to each of her 5 friends. What fraction of the whole sandwic
    8·1 answer
  • Find a cartesian equation for the curve and identify it. r = 10 tan(θ) sec(θ)
    7·1 answer
  • What value should be added in both blanks to complete square
    13·2 answers
  • Question Navigator
    14·1 answer
  • Help on geometry work?
    14·1 answer
  • What is the answer to these questions I will give brainly
    12·1 answer
  • What can be concluded from the pie chart?
    7·1 answer
  • 8 x 10*-3
    9·1 answer
  • Select ALL the true statements about the scatter plot below.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!