Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
N
prove that (sec^2(x)) / (sec^2(x) - 1) - 1 = cot^2(x)
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2
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1K
stapel
stapel
P
Given a diagram and the Law of Sines, prove or disprove...
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2
Views
2K
panic
P
S
Find the length of a side in angle ABC
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2
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2K
sisxixon
S
F
Conjecture about next three terms in 1, 5, 2, 8, 3, 11, ...
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2
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2K
pka
pka
C
Graphing a system of equaton: x + y + 2 = 0, x = y - 8
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1
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1K
mts
M
T
Greater than or equal to
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2
Views
1K
soroban
S
X
Find exact value of cot(-165) degrees using difference
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4
Views
8K
arthur ohlsten
A
G
find length of string needed to wrap around wheel w/ r = 3
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2
Views
1K
wjm11
W
M
Find angle
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1
Views
1K
soroban
S
T
Establish the identity sec - cos = sin x tan
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5
Views
8K
tkhunny
tkhunny
G
Please Help: Trig- simplifying, factoring, verifying
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2
Views
3K
soroban
S
B
solve sec^4 (2x) = 4, sin 2(x) + sin4(x) = 0
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4
Views
5K
soroban
S
C
Graphing equations....
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1
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1K
skeeter
skeeter
J
properties of a parallagram.....HELP PLZ!!
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1
Views
2K
pka
pka
S
Fill in the blank questions PLEASE HELP!
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1
Views
1K
pka
pka
A
Trig help
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1
Views
1K
AllanB
A
F
Stuck on Identity: cos(Pi/2 - x) = sin x
Replies
5
Views
5K
AllanB
A
S
Help with a proof
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1
Views
1K
galactus
G
S
[SPLIT] prove (csc^2x-cot^2x)/(1+tan^2x)=cos^2x
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2
Views
2K
skeeter
skeeter
I
[SPLIT] solving trig eqns: sin2x(csc2x - 2) = 0, etc
Replies
2
Views
4K
soroban
S
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