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
jeyben [28]
3 years ago
13

Simplify (1 − cos x)(1 + cos x). (2 points)

Mathematics
2 answers:
Vadim26 [7]3 years ago
4 0

Answer:

sin²x

Step-by-step explanation:

we have

(1 − cos x)(1 + cos x)=1-cos²x

Remember that

sin²x+cos²x=1 ------> i-cos²x=sin²x

therefore

(1 − cos x)(1 + cos x)=sin²x

liq [111]3 years ago
4 0

Answer:

sin^2x

Step-by-step explanation:

Given expression,

(1 - cos x)(1 + cos x)

By using a^2-b^2=(a+b)(a-b)

(1 - cos x)(1 + cos x)=1^2 - cos^2x = 1 - cos^2x

\because sin^2x+cos^2x=1

\implies (1 - cos x)(1 + cos x)=sin^2x+cos^2x - cos^2x=sin^2x

Since, further simplification is not possible,

Hence, the simplified form of the given expression is sin^2x

You might be interested in
What is the equation of the line perpendicular to the line y=4/9x-2 that passes through the point (4,3)?
dalvyx [7]
Y - y₁ = m(x - x₁)
 y - 3 = -2¹/₄(x - 4)
 y - 3 = -2¹/₄(x) + 2¹/₄(4)
 y - 3 = -2¹/₄x - 9
   + 3            + 3
       y = -2¹/₄x - 6
4 0
3 years ago
Read 2 more answers
4. Don designed a triangular-shaped garden. Use the diagram to answer each question.
mote1985 [20]
This is a 45-45-90 triangle or a right triangle created by the sides.

Because of this being a right triangle and 45 degrees being given already for one angle you would add 90 and 45 which will give you 135. You would subtract 135 from 180 because all the angles of a triangle add up to 180°. 180-135=45. X=45°
8 0
2 years ago
Read 2 more answers
What would my GPA be? Here are my grades.
marta [7]
That is approximately, in order, a C, a C, a B, a D, an A, a B, and an A.

In grade points that is a 2, a 2, a 3, a 1, a 4, a 3, and a 4.

The average of those numbers is about 2.7, so you have a 2.7.

You can raise that by bringing up the D as it is an outlier here.
4 0
3 years ago
Glve the position of E on this number line. -- 1 Write a fraction for your answer. 昌 口号 Х ?​
Rufina [12.5K]

Answer:

follow xxflirtykingxx

5 0
3 years ago
Read 2 more answers
Round 82.265 to the nearest whole number.
Zinaida [17]
83.................................

7 0
3 years ago
Other questions:
  • Why does the inequality sign have to be flipped when multiplying and dividing by a negative number like in −2x > 10?
    10·1 answer
  • Draw the straight line y= x+2
    7·1 answer
  • Which set of ordered pairs could be generated by an exponential function
    10·1 answer
  • Find an explicit formula for the geometric sequence <br> −8 ,−40 ,−200 ,−1000,...
    14·1 answer
  • The width of a rectangular sandbox is two less than twice the length. The perimeter of the sandbox is 26 feet. Identify the leng
    15·2 answers
  • PLSSS HELP IMMEDIATELY!!!!!!! only answer if u know. i’ll be giving brainiest if u don’t leave a link.
    7·2 answers
  • Please solve for x thanks!
    6·1 answer
  • Which is the graph of f(x)= 3 sq root -x?
    15·1 answer
  • Help anyone need it asap<br> 8th grade math
    14·1 answer
  • Local extreme Value for each of the Following A) F(x)=x^² - 4x² +5​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!