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
luda_lava [24]
3 years ago
14

What is the sine and cosine of 240

Mathematics
2 answers:
belka [17]3 years ago
7 0
Sin(240) = -√(3)/2
sin(240) = 2sin(120)cos(120)
sin(240) = 2[2sin(60)cos(60)cos(120)]
sin(240) = 2[2[2sin(30)cos(30)cos(60)cos(120)]]
sin(240) = 2[2[2[2sin(15)cos(15)cos(30)cos(60)cos(120)]]]
sin(240) = 16sin(15)cos(15)cos(30)cos(60)cos(120)

cos(240) = ⁻¹/₂
cos(240) = cos¹⁶(15) - sin¹⁶(15)
harina [27]3 years ago
3 0
Sine:
0.94544515492
Cosine:
<span>0.32578130553
</span>
You might be interested in
Whats the figures and how do I find the area?​
iragen [17]

Answer:

This is trapezium.

Area of this figure =1/2h(d1-d2)

1/2×5(14-8)

=30/2

=15cm^2

8 0
3 years ago
What is the completely factored form of f(x)=x3+5x2+4x−6?
Gre4nikov [31]
f(x)=x^3+5x^2+4x-6
f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)

Synthetic division yields

-3  |  1   5   4   -6
.    |      -3  -6    6
- - - - - - - - - - - - -
.    |  1   2  -2    0

which translates to

\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2

with remainder 0. Now by the quadratic formula,

x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3

and so

f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))
3 0
3 years ago
Products equivalent to the quotient of 9/ divided by 2
Murljashka [212]

Answer:

\frac{3}{\sqrt{2} }^2

Step-by-step explanation:

8 0
3 years ago
Jenna found a pair of sneaker that cost $64.She has a 15% off coupon. How much will she pay for the sneakers?(without Tax?)
Vesnalui [34]
$64 x .15 = $2.40 $16.00 - $2.40 = $13.60
8 0
3 years ago
I need answer as quick
Novosadov [1.4K]

Answer:

C

Step-by-step explanation:

(x+7)(x+1)(x+4)=

x^3+12x^2+39x+28 or C

3 0
3 years ago
Read 2 more answers
Other questions:
  • James filled 4 glasses with milk. Patrick filled 6 glasses with milk. Each glass held 8 ounces of milk. Which method explains a
    15·1 answer
  • Veronica is filling a bag with marbles. She fills the bag with 8 green marbles for every 6 red marbles. The table below shows th
    7·1 answer
  • Jada lives in a city that has an area of 344.6 square miles. Her friend lives in a town that is 1/10th that size. What is the ar
    9·1 answer
  • Determine if x=-16 is a zero &amp; find the quotiant and the remainder​
    12·1 answer
  • The value of sqrt-9 is not -3 because
    6·2 answers
  • What is the greatest common factor of the numerator and denominator of the rational expression below? 5x-20/x^2-2x-8
    11·1 answer
  • Which of the following numerical expressions has the least value?
    5·2 answers
  • What are the roots of the equation 4x2 = 36x – 87 in simplest a + bi form?
    8·1 answer
  • 60 + 108 = 180<br> What property would this be
    7·1 answer
  • what is the slope of the line?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!