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
vivado [14]
2 years ago
15

Rewrite \sqrt((1+cos45)/(2)) using a half-angle identity

Mathematics
1 answer:
aleksklad [387]2 years ago
7 0

\stackrel{\textit{Half-Angle Identities}}{cos\left(\cfrac{\theta}{2}\right)=\pm \sqrt{\cfrac{1+cos(\theta)}{2}}} \\\\[-0.35em] ~\dotfill\\\\ \sqrt{\cfrac{1+cos(45^o)}{2}}~~ = ~~cos\left( \cfrac{45^o}{2} \right)\implies \sqrt{\cfrac{1+cos(45^o)}{2}}~~ = ~~cos(22.5^o)

You might be interested in
Which answer is the most reasonable estimation? Lance is organizing his baseball card collection into albums. Each album can hol
RSB [31]
Hello there.

Which answer is the most reasonable estimation? Lance is organizing his baseball card collection into albums. Each album can hold up to 50 cards. He has 202 cards in his collection. About how many albums will Lance need? A. about 5 B. about 10 C. about 50 D. about 150

Answer: A) 5

8 0
3 years ago
Read 2 more answers
Plzzzzzzzzzzzzzzzzzzzzzzzzz help im going to fail if i don't get this
Mrac [35]

Answer:

Ay nako mahirap yan plsss answer

6 0
3 years ago
Is the sum of any two numbers is greater than the larger of the two numbers?
rjkz [21]

Answer: Yes the sum of any two numbers is greater than the larger of the two numbers.

Step-by-step explanation:

Yes the sum of any two numbers is greater than the larger of the two numbers.

Let us assume that the two numbers are a and b and ab is the number.

a + b > a

b > a – a

b > 0

This therefore implies that b > 0.

This may however not be true when the value of b is zero(0) or a negative number.

5 0
3 years ago
The scale factor of the dilation of figure ABCD is
almond37 [142]
D' = (-2, 0) = 2*(-1, 0) = 2*D

The scale factor is 2.
6 0
3 years ago
Use the​ add-on method for determining interest on a loan of ​$1730​, with an annual rate of 12​% and a term of 2 years.​ Then,
slamgirl [31]
In 2 years, you will have $2,170.11
3 0
3 years ago
Other questions:
  • The vertices of ΔABC are (-2,0), (-2, 3), and (-5, 1). T(x,y) = (x + 1, 3y) represents the transformation of the triangle. What
    9·1 answer
  • How do you turn a fraction into a decimal. I have to measure architextual drawings tomorrow and turn the measurements into numbe
    12·1 answer
  • 3/7 - 2<br> ---------- &lt;--fraction/divide<br> 5/14 - 1
    9·1 answer
  • What is the product in simplest form?
    12·1 answer
  • Show all work to multiply (3+ /(-16))(6-/(-64))
    9·2 answers
  • A paper company needs to ship paper to a large printing business. The a paper will be
    15·1 answer
  • HELP!: HELP!: HELP!:
    10·2 answers
  • 8×3/4×3/4×8×3/4 Help me please. ​
    7·1 answer
  • ˣ⁺⁶⁄ₓ = ¼<br><br> Can someone explain to me how to solve this?
    6·1 answer
  • 60% of the voters favor Ms. Stein. If 200 voters are chosen at random, what is the expected number of voters who indicate favori
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!