Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
A
2 tan x + ? (12) = 0
Replies
1
Views
1K
galactus
G
H
Finding a point on an ellipse
Replies
3
Views
2K
helto
H
M
Prove a + b > c for triangle to exist
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2
Views
2K
Deleted member 4993
D
F
Prove these 2 vectors are perpendicular
Replies
1
Views
10K
royhaas
R
P
How do I prove a trig identity??
Replies
4
Views
2K
Loren
L
E
finding the eccentricity or focal width of x^2 = 14y
Replies
3
Views
2K
tkhunny
tkhunny
L
Trig Identities: if tan x = -4/3, pi<x<2pi, find cos(x/2)
Replies
5
Views
12K
Lunare
L
L
Trig identities: if tan x = -4/3, 0<x<pi, find tan(x + pi),
Replies
4
Views
4K
Lunare
L
B
verifying trig identities: cos^2 * csc *sec=cot, etc.
Replies
8
Views
3K
brettg
B
M
simple identity trick: (cosx)^2 (sinx)^2 = (1/4)(sin2x)^2
Replies
1
Views
2K
Loren
L
R
Could sine or cosine fcn describe motion of Ferris wheel?
Replies
2
Views
2K
Deleted member 4993
D
B
Areas Of Regular Polygons: radius, apothem, side, perimeter
Replies
3
Views
3K
Loren
L
D
Find all solutions for 5 sin^2(x) - 4 = 0
Replies
3
Views
2K
tkhunny
tkhunny
D
Find all solutions for 2 sin^2(u) + sin(u) = 1, etc.
Replies
1
Views
2K
skeeter
skeeter
D
elevation and speed problem
Replies
3
Views
2K
wjm11
W
D
Barge Towing Problem
Replies
1
Views
10K
skeeter
skeeter
D
Resultant Force Problem
Replies
2
Views
2K
dear_miss_katie
D
S
Area of shaded region?
Replies
2
Views
2K
TchrWill
T
V
Periodic Functions (sinusoidal (gr.11))
Replies
5
Views
3K
skeeter
skeeter
L
Tangent intersection vs. radius?
Replies
2
Views
2K
Deleted member 4993
D
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