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Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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M
Similar triangles
MarkSA
Jan 17, 2008
Replies
2
Views
1K
Jan 18, 2008
MarkSA
M
P
proving identity: (Cos^4x-Sin^4x)/1-Tan^4x = Cos^4x
peter0516
Jan 17, 2008
Replies
17
Views
11K
Jan 18, 2008
Akshay.live
A
M
Indep. or dep. vectors?: (1,-1,-2), (2,-1,3), (-1,2,-1)
mathisgod
Jan 16, 2008
Replies
3
Views
1K
Jan 16, 2008
Deleted member 4993
D
M
Trigonometry Triangle Non-Routine Problem
mathangel
Jan 8, 2008
Replies
3
Views
4K
Jan 16, 2008
mathangel
M
3
irrational number and the diagonal of a square
33user
Jan 15, 2008
Replies
1
Views
6K
Jan 15, 2008
Deleted member 4993
D
J
Difficulty with an ellipse problem
JosephRadkins
Jan 15, 2008
Replies
1
Views
1K
Jan 15, 2008
soroban
S
C
perimeter and area help!
cpluva
Jan 14, 2008
Replies
5
Views
2K
Jan 14, 2008
Deleted member 4993
D
M
foci applictions
milifiori
Jan 13, 2008
Replies
1
Views
1K
Jan 14, 2008
Deleted member 4993
D
B
pentagon coordinates
browncutie
Jan 12, 2008
Replies
5
Views
8K
Jan 13, 2008
galactus
G
M
Proof: opp. angles/sides of parallelogram congruent
MathedSara
Jan 13, 2008
Replies
1
Views
2K
Jan 13, 2008
Deleted member 4993
D
R
Find the cube roots of -64i in 'a + bi' form
Robert G
Jan 12, 2008
Replies
2
Views
4K
Jan 12, 2008
Deleted member 4993
D
S
( sec^2(x) + csc^2(x) ) - ( tan^2(x) - cot^2(x) )
Slipery
Jan 12, 2008
Replies
2
Views
2K
Jan 12, 2008
galactus
G
S
Modeling a Guitar Note
Slipery
Jan 11, 2008
Replies
2
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2K
Jan 11, 2008
Slipery
S
M
Largest # of Identical Pieces
Mustang1910
Jan 9, 2008
Replies
2
Views
1K
Jan 11, 2008
Mustang1910
M
K
planes 2x + 3y - z = 2, 3x - 3y + z = 4, x - y + 2z = 5
karan
Jan 10, 2008
Replies
3
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2K
Jan 10, 2008
soroban
S
K
hypotenuse 4 times length of perp.: find acute angle
karan
Jan 10, 2008
Replies
2
Views
3K
Jan 10, 2008
stapel
A
Change of Velocity
amandaj
Jan 6, 2008
Replies
2
Views
2K
Jan 7, 2008
TchrWill
T
C
Trig: tan2x=(-24/7), find sinx and cosx
carly
Jan 4, 2008
Replies
1
Views
3K
Jan 4, 2008
stapel
J
Evaluate each expression
jsh_aziza
Jan 2, 2008
Replies
2
Views
4K
Jan 3, 2008
nycfunction
N
C
Trig: solve (cosx)^2 - 2sinxcosx - (sinx)^2 = 0 on [0,2pi]
carly
Jan 2, 2008
Replies
8
Views
10K
Jan 2, 2008
pka
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