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
Arada [10]
2 years ago
5

√3×sinx+cosx=0 tmf nghiệm

Mathematics
1 answer:
Crazy boy [7]2 years ago
7 0

Answer:

x= -30

Step-by-step explanation:

√3×sinx+cosx=0

√3sinx=-cosx

√3sinx/-cosx=1

-sinx/cosx=1/√3

-tanx=1/√3

(tan(180-30))=1/√3

tan(-30)=1/√3

Therefore, x= -30

You might be interested in
One hundred nautical miles equals about 185 kilometers. To the nearest kilometer, how far in kilometers is 175 nautical miles?
MrMuchimi

Answer:

323.75 km

Step-by-step explanation:

185/100 = 1.85 km per nm

1.85 * 175 = 323.75 km

3 0
3 years ago
How do you explain mental math to multiple two numbers
Fantom [35]
When multiplying two numbers, a person can mentally add one of those numbers the other number amount of times.
7 0
3 years ago
Which algebraic expression is equivalent to the expression below?
gregori [183]
The correct answer to this problem is be because you have to multiply the 4 outside of the parentheses with the 4 inside of the parentheses which gives you 16X and then afterwards you have to do the same with the 6 with so since 4•6=24 you can automatically eliminate answer choice D and then you add up your 3x to your 16x which will be 19x so it would be B. 19x+24

3 0
3 years ago
What did they do wrong?
Tatiana [17]
They didn’t distribute the -1 (which is the “-”) correctly into the numbers in the parentheses. After distributing correctly, step 1 should be
8a+3+5a-2a

Hope this helps :)
5 0
3 years ago
An animal shelter spends $2.50 per day to care for each bird and $4.00 per day to
Alex

Answer:

19 birds where there on Friday

4 0
3 years ago
Other questions:
  • Freya is training for a track race. She starts by sprinting 200 yards. She gradually increases her distance, adding 5 yards a da
    5·3 answers
  • Can someone help me with number 9 please? thanks
    7·1 answer
  • PLEASE HELP! A large spool holds 78.5 meters of steel cable.
    6·2 answers
  • The graph shows the function f(x)=3^x
    15·1 answer
  • Two towns are 540 km apart. If the scale on the map is 2 cm to 50 km, how far apart are the towns on the map?
    10·1 answer
  • -1(x+5)=3[x+(2x-1)]<br> solved and justified each step
    8·1 answer
  • Please help!!!
    10·1 answer
  • HELP!! Please, I'll give the first person to get it right a brainliest!<br> 0.8/y =2: 3/4
    5·1 answer
  • Graph the number on the number line.
    14·1 answer
  • Function g can be thought of as a translated (shifted) version of f(x) = x2.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!