Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
C
Confused: triangle CDE, CD=3y < DE=30, CE=45,....
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2
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2K
skeeter
skeeter
D
geodesy-coordinate geometry: anybody understand it?
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1
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2K
Denis
D
D
Coordinate geometry: find gradient, x- and y-intercepts
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1
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2K
Denis
D
W
Geometer sketchpad-dodacahedron
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4
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2K
worldclassfan
W
T
AIME Problem: The distance AB is 12...
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1
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2K
Denis
D
M
Angle of Elevation: find the height of the tree
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11
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8K
galactus
G
S
trig nightmare: solve cosx/1 - sinx
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6
Views
29K
skeeter
skeeter
C
cos3x=4cos^3 x-3cosx (x after ^3 is not rooted...)
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5
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4K
clementine
C
M
Triangle leg-lengths and tangent of angles
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8
Views
11K
jonboy
J
H
Bearing equation (closest approach to landmark along road)
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2
Views
3K
soroban
S
Q
Solving trig equation: (sinx)^2=sinxcosx, on [0, 2pi)
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10
Views
4K
tkhunny
tkhunny
C
Trig help!!! sin3xsinx=1/2(cos2x-cos4x)
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6
Views
10K
clementine
C
S
Need help with question: linear eqn & homogenous soln
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4
Views
3K
sigma
S
L
help! (vertex of a perabola)
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3
Views
2K
stapel
stapel
T
WLOG and AM-GM: what does 'WLOG' mean?
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2
Views
2K
galactus
G
G
Help with trig problem: exact value of cos^-1(cos(4pi/3))
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1
Views
11K
pka
pka
M
need help with trig/geometry: is chat available?
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8
Views
4K
Denis
D
D
Co-ordinate geometry: find radius of circle, and....
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7
Views
3K
davidg
D
T
Volume of a Tetrahedrom
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7
Views
3K
Denis
D
M
Inverse Tangent???
Replies
5
Views
3K
skeeter
skeeter
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