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
Harman [31]
4 years ago
13

4. CSC X COS X - 2 cos x = 0

Mathematics
1 answer:
Alisiya [41]4 years ago
3 0

Answer:

infinitely many answers, any odd integer n times π/2

ex. π/2, 3π/2, 5π/2

Step-by-step explanation:

we know that cos (π/2) or cos(3π/2) is 0

if one factor is 0, the product is zero, so we will not care about csc(x).

x is any odd integer n times π/2

You might be interested in
Need HELP ASAPPPPP !!!! 100 points !!!!
Leokris [45]

Answer:

C

Step-by-step explanation:

Using the trigonometric ratios, C would be correct.

6 0
2 years ago
Describe the type of composite transformation happening to triangle XYZ.
bagirrra123 [75]

Answer:

B

Step-by-step explanation:

6 0
3 years ago
Find sin2a if sina=3/5 and a is in quadrant 2
LenKa [72]
Sin(a)= \frac{3}{5}

To find sin(2a) = 2*sin(a)*cos(a), we ned to find cos(a)

We know that,

sin²(a) + cos²(a) = 1

cos(a) = \sqrt{( 1- sin^2 a)}

cos(a) = \sqrt{1- ( \frac{3}{5} )^2} =  \sqrt{1-  \frac{9}{25}} =  \sqrt{ \frac{16}{25}} =  \frac{4}{5}

Thus, cos(a) = +- \frac{4}{5}

We know a is in second quadrant and thus cos(a) is -\frac{4}{5} because cosine is always negative in the second quadrant.

Therefore,

sin(2a) = 2*sin(a)*cos(a) = 2* \frac{3}{5} * \frac{-4}{5} =  \frac{-24}{25}


5 0
3 years ago
There are 2 rabbit 5 dogs 3 horse and 1 2 goats what is the ratio from dog, goat,rabbit,horse
AlexFokin [52]

I think the ratio would be 5 : 2 : 2 : 3

8 0
3 years ago
A jar has 3 red marbles and 9 blue ones. If you randomly pick a marble without replacing it and then select another, what is the
GaryK [48]
The probability of picking two blue would be 2/9 because you would use the 2 out of the 9
5 0
4 years ago
Read 2 more answers
Other questions:
  • What is the value of the expression 2 + 3² ⋅ (4 − 1)?<br><br> 24<br> 29<br> 33<br> 37
    15·2 answers
  • Find the value of c so that (x+2) is a factor of the polynomial p(x). p(x)=4x^3+cx^2+x+2
    12·1 answer
  • A store has 263 board games. Sit has 100 fewer puzzles than board games. The store has 10 more action figures than puzzles. Writ
    11·2 answers
  • Solve the Inequality.<br><br> -5r + 6 ≤ -5(r+2)
    10·2 answers
  • Please help
    7·1 answer
  • Place these fractions in order from least to greatest: 3/8 , 1/4 , 1/2 , 2/3 , 5/6 , 1 1/2 , 1 5/8
    13·1 answer
  • HELP HELP HELP I NEED HELP
    14·2 answers
  • 10 less than a number
    8·1 answer
  • Solve the problem. Round the solution to the nearest hundredth where applicable. What is the tangent of ZH?
    10·1 answer
  • Split <img src="https://tex.z-dn.net/?f=%284ax-a%5E2%29%2F%28x%5E2%2Bax-2a%5E2%29" id="TexFormula1" title="(4ax-a^2)/(x^2+ax-2a^
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!