Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Trig Identity Proof: a cos(t) + b sin(t) = sqrt{a^2+b^2} sin(t) + arctan(a/b)
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4
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2K
Deleted member 4993
D
M
Reference system change (theory, not exercise solution)
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1
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2K
Ishuda
I
H
describe the meaning and concept of cohomology in a visual non technical tongue?
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1
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1K
Ishuda
I
M
Geometry, Trig, Calculus . . . not sure
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1
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1K
stapel
stapel
F
Regarding n points placed within a circle, and point Q on the periphery.
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3
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3K
frusciante
F
A
Where two line segments intersect?
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3
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2K
Johulus
J
T
how to find the apothem of a pentagon from the sum of the apothem and radius
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1
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2K
Thunderbird
T
T
Geometry: Straight line 21 inches long, required to some formula to make this line a
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4
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2K
Harry_the_cat
Harry_the_cat
A
Bearings: A radar station picks up a distress call from a ship. It is 50km away on a
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2
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3K
adi9891
A
D
Binominal Series: expand in ascending powers of X as far as x3: 1/sqrt{4+x}
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3
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3K
Daz
D
B
Ground speed/ air speed help
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5
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1K
stapel
stapel
L
Terrain Area Math Problem
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2
Views
1K
stapel
stapel
C
Need help calculating relative position
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6
Views
3K
Deleted member 4993
D
R
Fitting 1 large square and 79 smaller squares in 8"x10.5" area?
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0
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1K
RobinF
R
E
I need an expert to figure out the length of a line.
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4
Views
2K
Steven G
Steven G
P
Perspective mapping using vanishing points
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0
Views
896
prsM
P
M
How to find the altitude and size of an object atop a building
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9
Views
8K
stapel
stapel
B
Cartesian coordinate transformation (rotation & scaling)
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4
Views
2K
Balsiefen
B
markraz
Rotation and Sperical coordinates Question
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0
Views
923
markraz
markraz
R
Triangle Geometry
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2
Views
1K
stapel
stapel
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