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
lorasvet [3.4K]
4 years ago
10

Verify the identity sin^2(x/2)=(1-cosx)/2

Mathematics
1 answer:
horsena [70]4 years ago
5 0
Use the following identity:

cos(2x)=1-2sin^2(x)
You might be interested in
Hepppppppppppppppppppppppppppppp
vfiekz [6]
You follow the rules for the quadratic formula, where

x= (-b +- √(b²-4ac) )/2a

Filling a, b and c in yields

x = (8 +- √(64-164) ) / 2 =>

x = (8 - √-100)/2 or x = (4 + √-100)/2

Well, √-100 = 10i, so then you simplify to the last answer, D:

x = 4-5i or x=4+5i
7 0
3 years ago
Solve for y in terms of x. 2/3 y - 4 = x
Nastasia [14]

Answer:

y = 3/2x + 6

Step-by-step explanation:

2/3 y - 4 = x

2/3y = x + 4

y = 3/2 * (x + 4)

y = 3/2x + 6

3 0
3 years ago
Read 2 more answers
Samuel has $2,000 in the bank and owns a car worth $9,000. He also has $10,000 worth of student loans and a $500 credit card bil
guapka [62]
<span>The answer is 500 Because if you $2,000 +$9,000 = 11,000 11,000 - 10,000 - 500 = 500 Do you understand? hope this helped :)</span>
7 0
3 years ago
Read 2 more answers
The perimeter of a square field is the same as that of a rectangular field. If the length of the rectangular field is 8 km and w
Bess [88]

Answer:

42.25cm^2

Step-by-step explanation:

8+5+8+5 = 26

26/4 = 6.5

6.5x6.5 = 42.25

4 0
3 years ago
Read 2 more answers
Target buys video games for $25/game. They markup the price by 75%. How much do
AVprozaik [17]

9514 1404 393

Answer:

  $43.75

Step-by-step explanation:

The amount of the markup is ...

  $25 × 0.75 = $18.75

The final cost to the customer is ...

  selling price = purchase price + markup

  = $25.00 + 18.75 = $43.75

They charge customers $43.75 for a videogame.

3 0
3 years ago
Other questions:
  • What is 8.52*10 to the third power in standard notation?
    8·1 answer
  • Kay's mother taught her how to make handmade ornaments to sell at a craft fair. Kay rented a table at
    11·1 answer
  • What Is The Solution To This Equation?<br> x/3 = 9<br>PLEASE PLEASE HELP!
    8·2 answers
  • Express 6/25 as a decimal fracture​
    15·2 answers
  • Helena makes $500 per week and she puts 15% of her paycheck in savings how much money does she put in savings
    8·2 answers
  • What's the meaning of range?
    8·2 answers
  • After some food is introduced into a petri dish containing bacteria, the number of bacteria in the dish increases
    6·1 answer
  • Hi i hope ur sunday is going well. Please help me with this answer
    12·2 answers
  • Solve for y.<br> x + y = -3
    13·2 answers
  • Graph: y + 2 = - 3/4 (x + 4)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!