Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
M
Trigonometry and forces
Replies
1
Views
888
tkhunny
tkhunny
Z
Problem from Do Carmo
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1
Views
880
tkhunny
tkhunny
M
"simplify cos(x-30)-cos(x+30)"
Replies
3
Views
1K
tkhunny
tkhunny
S
How would I solve the following using matrices?
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2
Views
1K
Deleted member 4993
D
M
Calculate the diameter + circumference of a circle (straight line on circumference)
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8
Views
3K
mitchellleary
M
G
If move the origin of a rectangle, rectangle gets smaller by a factor of amount moved
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1
Views
1K
mmm4444bot
mmm4444bot
V
Extremely hard trigo prob: "Nathan is swimming across a river from A to B..."
Replies
3
Views
4K
stapel
stapel
S
How would I solve the following set of equations using matrices (row operations)?
Replies
4
Views
1K
stapel
stapel
F
Can only prove 2 out of 4 solutions...wouldnt mind be pointed in the right direction
Replies
10
Views
3K
mmm4444bot
mmm4444bot
M
Help! Coordinates of intersecting lines!
Replies
2
Views
2K
Mast4rwang
M
A
Need help with equally dividing a 2D line, but with a catch (sort of)
Replies
1
Views
852
mmm4444bot
mmm4444bot
A
Can someone help me prove that 3sec(x)^2-2=sec(x)^2+2tan(x)^2 ?
Replies
5
Views
2K
abbb7615
A
S
Geometry (angles)
Replies
2
Views
904
mmm4444bot
mmm4444bot
C
Can someone please help me with this geometry problem?
Replies
17
Views
6K
mmm4444bot
mmm4444bot
markraz
Intersection Of 2 Cylinders
Replies
4
Views
2K
markraz
markraz
M
Driveway Problem
Replies
0
Views
848
mattholt12
M
T
Solve 2cosx - 2sinx + cos2x = 0
Replies
1
Views
1K
stapel
stapel
B
Can someone help with how many objects fit in a volume?
Replies
3
Views
3K
mmm4444bot
mmm4444bot
S
Can somebody help me solve this problem about similar triangles?
Replies
11
Views
3K
mmm4444bot
mmm4444bot
C
Tricky Q: how to optimize the number of circles fitted in a bounded region.
Replies
1
Views
1K
mmm4444bot
mmm4444bot
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