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functions videos,
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Our
functions videos replace text-based tutorials and give you better step-by-step explanations of functions. Watch each video repeatedly until you understand how to approach functions problems and how to solve them.
- Hundreds of video tutorials on functions make it easy for you to better understand the concept.
- Hundreds of word problems on functions give you all the practice you need.
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Algebra: Functions Videos
Sine Cosine Tangent
Video Clip Length: 2 minutes 18 seconds
Video Clip Views: 8870
This clip gives the definitions of the trigonometric functions sine, cosine and tangent.
curves, functions, identities, plane figures, shapes, trigonometric functions, trigonometric identities
Algebra: Functions Word Problems
An airplane is sighted at the same time
An airplane is sighted at the same time by two ground observers who are 4 miles apart and both directly west of the airplane. They report the angles of elevation as 11° and 22°...
A 25 m tower standing vertically
A 25 m tower standing vertically on a hillside casts a shadow down the hillside that is 27 m long. The angle at the tip of the shadow S, subtended by the tower is 26...
Algebra: Functions Practice Questions
f(x)= sqrt(x) - sqrt(x+4)
find the domain
x
3 + x
2 +1
y=√
x-5
y= |x+4| - 2
Find a polynomial for the perimeter and for the area using d+4 and d
f(x) = (3/2)
x
2ab(5a + 4b)=
Express the area A of an equilateral triangle as a function of the length x of a side.
What is the value of arcsin (- √
2 / 2)?
a=17 b=39 and c=50 Find A
What is the area of triangle ABC given that a = 4 , b = 7 , and B = 75°
sin(a+b)=
tan 59
a=8.5 c = 14.2
How do you graph trig tangents?
Rose Street is perpendicular to Oak Lane. on your map. Draw Rose Street so that it is perpendicular to Oak Lane. { Oak Lane is a line going straight ahead.}
(3...
what is
-y= -2/3 x +5
( 1,2 ) ( 7...
Solve y=3/2x-2
(3,1) (-2-3)
y = (4/5)x + 7/5
y=3x-4
y=12x-4
y-1=0
y = -3/8 x + 18
(9,-4) , (-5,8)
y=4x
Write an equation in standard form for a line that contains the points (-2, -8) and (-2, 5)
What is the slope of the line joining (5,9) and (-2,9)
What is an equation for a slope of zero?
what is an equation for a zero slope?
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