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
Dima020 [189]
3 years ago
8

Trigonometric Identity help​

Mathematics
1 answer:
vovikov84 [41]3 years ago
7 0

Answer:

sin\pi/4 * sin\pi/6 = 1/2 *(cos \pi/12 - cos 5\pi/12)

Step-by-step explanation:

Formula:- sinX sinY = (1/2) [ cos (X - Y) - cos (X + Y) ]

sin(π/4)sin(π/6)

= (1/2)[cos(π/4 - π/6) - cos(π/4 + π/6)]

= (1/2)[cos(3π/12 - 2π/12) - cos(3π/12 + 2π/12)]

= (1/2)[cos(π/12) - cos(5π/12)]

You might be interested in
Please help, I would appreciate it a lot
AleksAgata [21]

Answer:

Sry, Can't help.

It's soo hard!!

8 0
3 years ago
Help me please I need the answer ASAP
Mrrafil [7]

Answer:

40%

Step-by-step explanation:

There are 18 players with 27 or more points

(Count the dots from 27 or higher)

18/45 is the fraction of players with 27 or more points

.40 is the decimal form

40% is the percent form

8 0
3 years ago
The complementary angle of 59°
Mandarinka [93]
90° - 59° = 31°

31° is your answer
7 0
3 years ago
Read 2 more answers
A crew will arrive in one week and begin filming a city for a movie. The mayor is desperate to clean the city streets before fil
Zigmanuir [339]

Answer:

See below in bold.

Step-by-step explanation:

You work in fractions of the city streets done per hour:

1/200 + 1/400 = 1 /x  where x is the number of hours taken by 2 teams.

Multiply through by the LCM 400x:

2x + x = 400

3x = 400

x =  133.33 hours.

As there are 168 hours in a week they will have enough time.

6 0
3 years ago
What is written as a decimal? 11/25<br><br><br><br><br> help
elena-14-01-66 [18.8K]
The correct answer is 0.44
5 0
3 years ago
Read 2 more answers
Other questions:
  • 6. The table shows the equations Ms. Valez discussed in math class today.
    8·2 answers
  • 6(m-1) = 3(3m + 2) Show all work
    9·1 answer
  • The following times were recorded by the quarter-mile and mile runners of a university track team (times are in minutes).Quarter
    9·1 answer
  • 7x−5=4y−6 x determine the intercepts of the line
    6·2 answers
  • Soft drinks cost $1.89 and refills cost $0.25 each. With $3.80 to spend on the soft drink and refills, what is the maximum numbe
    7·1 answer
  • HELP WITH THIS QUESTION??
    7·1 answer
  • A single six-sided die is rolled. Find the probability of rolling a seven
    6·2 answers
  • Math question pls help asap thxxu<br>question is in pic​
    14·1 answer
  • Solve for x: <br><br>16=2(2x+4)<br>​
    10·2 answers
  • The sum and product of zeroes are 4 and 1 respectively then the quadratic equation is
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!