Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
J
Substitution or elimination
Replies
2
Views
2K
soroban
S
J
Use the Law of Detachment or the Law of Syllogism to...
Replies
2
Views
2K
JayJay06
J
F
The base angles of an isosceles trapazoid are 60 degrees and
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5
Views
5K
stapel
stapel
J
Circles/chords help: In a circle with d = 2, a chord is....
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3
Views
2K
pka
pka
S
Fitting Furniture Into An Elevator . . .
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6
Views
7K
jacket81
J
M
calculate field of rectangular lattice, size of points, etc
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1
Views
2K
stapel
stapel
A
An oil well was drilled 3400 ft before it hit a ledge of....
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2
Views
9K
soroban
S
D
Solving trig equation: cos2x cosx - sin2x sinx = -1
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4
Views
8K
d4dewu
D
T
Solving trig equation sin(2x) - cos(2x) = 0
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3
Views
10K
tkhunny
tkhunny
B
Need help with defintion of 'equiangular triangle'
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2
Views
2K
stapel
stapel
I
needing help with proofs, but unclear on their purpose
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2
Views
2K
stapel
stapel
E
I need help with doing proofs. Suggestions?
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1
Views
2K
stapel
stapel
J
help w/ truth value of disjuntion 'q or not-p'
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1
Views
2K
pka
pka
B
Find the vertex of 0.4y^2 – 36y + 1000
Replies
6
Views
19K
tkhunny
tkhunny
S
Verify tanx^2 = ((1 - cos2x) / (1 + cos2x) using dbl. angle
Replies
3
Views
16K
soroban
S
J
need help w/ reason for m<BPC + 2(m<PBC) = 180
Replies
1
Views
1K
stapel
stapel
S
Find exact values for sine, cosine, and tangent of 19pi/12
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2
Views
32K
smsmith
S
J
How the Zero Product Property is Used?
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2
Views
2K
soroban
S
S
help! how do you do proofs!
Replies
1
Views
1K
pka
pka
T
How is cos(90 - [degrees]) equivalent to sin([degrees])?
Replies
4
Views
6K
skeeter
skeeter
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