3 years ago

Find the exact value of tan22.5 using the half angle formula.

2 answers:

mote1985 [20]3 years ago

7 0

Tan(a/2) = sin a / (1 + cos a)
tan(45/2) = sin(45) / (1 + cos(45)) = (1/√2) / (1 + 1/√2) = (1/√2) / (√2 + 1)/√2 = 1/(√2 + 1) = (√2 - 1)

marta [7]3 years ago

3 0

Answer:

C on Edge

Step-by-step explanation:

I got it right on the test

You might be interested in

208 rounded to the hundreds place

Serjik [45]

Answer:

200

Step-by-step explanation:

6 0

2 years ago

HELP ME PLEASE IM SO DESPERATE TO ANSWER THIS, ILL BE SO THANKFUL TO YALL

Scrat [10]

Answer:

x+2 volts is what I got.

Step-by-step explanation:

7 0

3 years ago

Jayana is trying to run a certain number of miles by the end of the month. If Jayana is 30% of the way to achieving her goal and

torisob [31]

Jayana is trying to run 30 miles by the end of the months.

30% / 100% = 9 / x

9 * 100 = 900

900 / 30 = 30 miles

4 0

2 years ago

M∠3 + m∠6 =180° True or False?

Natali5045456 [20]

Answer:

False. Because it is the answer.

8 0

3 years ago

Read 2 more answers

Rae earns $8.40 an hour plus an overtime rate equal to 1(1/2)times her regular pay for each hour worked beyond 40 hours. What ar

Nitella [24]

Answer:

At $8.40 an hour for a 40 hour week the earnings would be $336. With 5 hours overtime the pay would be $12.60 an hour which equals $63 making her earnings a total of $399 for the 45 hour work week. would be Step-by-step explanation:

5 0

3 years ago