Question

what are the values of sine cosine and tangent for a 210 degree angle? Keep answer in the the simplest radical form.

Answer #1

This is probably a vector problem, or something related to the
law of sine/cosine/tangent:
The battleship USS Tennessee is 150 miles due south of the
destroyer USS Alaska and is sailing North at 40 mph. If the USS
Alaska is sailing East at 25 mph, how far apart will the ships be
when the distance is at a minimum?

use both cosine law/sine law enough component method to answer
the following:
An explosion breaks a stationary rock into 3 fragments. A 4.0 KG
fragment flies due North at 20 m/s. A 3.0 kg fragment flies due
West at 40 m/s. The third fragment has a mass of 5 KG. Calculate
the velocity of the third fragment after the explosion.

Write a Matlab program to plot the cosine wave. That is plot
y=cos(k1x) vs. x for x varying from 0 to 2pi radians. The value of
k1 is given at the end of this document. You can choose the
increment for x. Note that large values of the increment will give
you a coarse graph. Note: Matlab has two functions to calculate the
sine of an angle: sin(x) and sind(x). What is the difference
between these two functions? Use help...

1a.
Find the domain and range of the function. (Enter your answer
using interval notation.)
f(x) = −|x + 8|
domain=
range=
1b.
Consider the following function. Find the composite
functions
f ∘ g
and
g ∘ f.
Find the domain of each composite function. (Enter your domains
using interval notation.)
f(x) =
x − 3
g(x) = x2
(f ∘ g)(x)=
domain =
(g ∘ f)(x) =
domain
are the two functions equal?
y
n
1c.
Convert the radian...

1. If light is incident in the air medium at an angle of 30
degree, what is the angle of reflection? a) 40 degrees b) 20
degrees c) 30 degrees d) none 2. Angle of reflection does not
depend upon the angle of incidence. a) true b) false 3. For light
ray incident normally, the angle of incidence is 90 degrees. a)
true b) false 4. Angle of refraction depends upon the angle of
incidence. a) true b) false 5....

1. If light is incident in the air medium at an angle of 30
degree, what is the angle of reflection?
a) 40 degrees
b) 20 degrees
c) 30 degrees
d) none
2. Angle of reflection does not depend upon the angle of
incidence.
a) true
b) false
3. For light ray incident normally, the angle of incidence
is 90 degrees.
a) true
b) false
4. Angle of refraction depends upon the angle of incidence.
a) true
b) false
5. If...

1) a. For what values of t does
x=4t3-12t2+5 &
y=t3-9t2+24t+1 have
horizontal and vertical tangent
lines?
b. **Find parametric & rectangular equations for the
tangent line at t= -1.**

please use Projectile simulator, for the Lab Projectile Motion
in 2-D and answer question below
14. Solve for t. [Hint, you can factor one of
the variables.]
15. What is the smaller answer referring
to?
Given that your larger answer should be the time it takes to land,
use that in your x-position equation, i.e. rewrite your equation
for x, replacing t with what you got in #14.
16. How far does it travel in the x-direction
before it lands?...

1. Complex algebra problems. You can check your answer with
Matlab: real, imag, abs, angle phase, conj. You are given:
A = 1+2j ; B = 2+1j
a. Find A*B, A/B, A^2 abs(A) and abs(B). Answers should
be simplified in (a+bj) form.
b. B in polar form (i.e. magnitude and angle in
degree)
c. Find exp(A) in polar and rectangular form. Hint use
Euler formula.
2. Matrix operation problems. Use Matlab: A = [1 2 3; 4 5 6; 7...

For what values of is the angle between the vectors i+2j-2k and
4i+cj-3k equal to 48 degrees?

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