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
Please help it’s just for A4 ignore All the other problems the equation is c=0.15t+2.50
Semmy [17]

Answer:    sds\\ \\ x^{2} \geq \int\limits^a_b {x} \, dx  \lim_{n \to \infty} a_n \geq \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right] \pi \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]  \lim_{n \to \infty} a_n \int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right. x^{2}  \lim_{n \to \infty} a_n \pi \neq \sqrt{x} \neq

Step-by-step explanation:i need the think points

4 0
3 years ago
The answer is D Does not exist; does not exist
jolli1 [7]

Answer:

Have a great day too..... :)

7 0
3 years ago
What is the image point of ( -5,0 ) after a translated left 2 units and down 3 units ?​
kvv77 [185]
Answer: ( -7 , -3 )


Step by step:
The point: ( X , Y )
Left 2 units = change X by -2
So, -5 subtract by 2 equals -7
Down 3 units = change Y by -3
So, 0 subtract by 3 equals -3
Now, X = -7 and Y = -3, so the answer is ( -7 , -3 )


Hope this helps! Please tell me if I did anything wrong, thank you!
5 0
4 years ago
PLEASE HELP !!! ILL GIVE YOU 10 POINTS IF YOU GET THIS CORRECT FOR MY TEST!!!!
kherson [118]

Answer:

Last one. I am 100% positive cause I'm good at this kind of math. If you need help on anything else, let me know

Step-by-step explanation:

6 0
3 years ago
Dr. George is ready to by a new iphone and has two different carriers he can go with. Cell 4 U can be represented by the functio
Aleks04 [339]
At Cell 4U it would cost $250 with accessories 
At Data House it would cost $245 with accessories.
He should buy a phone from Data house because it will be 5 dollars cheaper
8 0
3 years ago
Other questions:
  • Find the total cost uing each unit 5 ft at $3 per foot
    14·1 answer
  • John runs a computer software store. Yesterday he counted 127 people who walked by his store, 58 of whom came into the store. Of
    15·1 answer
  • Every smoothie sold contains 0.5 cups of strawberries. How many smoothies can be sold using 3.25 cups of strawberries?
    10·2 answers
  • Charles has been assigned several chores around the house. He washes the supper dishes every fifth day, he takes out the trash e
    14·1 answer
  • Priya wants to buy three tickets for a concert. She has earned $195 and each ticket costs $80. She borrows the rest of the money
    15·1 answer
  • Determine the input value for which the statement
    12·1 answer
  • Help please!!! i don’t understand
    8·1 answer
  • Solve the equation by finding the linear factors and the zeros of x^2-14x+13=0
    15·2 answers
  • A store manager combines 2 lb of trail mix that contains some cashew nuts with 30 lb
    13·2 answers
  • Solve the system of equations.<br> y=x+2<br> 4x-4y= 1
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!