Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
E
I need help with doing proofs. Suggestions?
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1
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2K
stapel
stapel
J
help w/ truth value of disjuntion 'q or not-p'
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1
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2K
pka
pka
B
Find the vertex of 0.4y^2 – 36y + 1000
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6
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19K
tkhunny
tkhunny
S
Verify tanx^2 = ((1 - cos2x) / (1 + cos2x) using dbl. angle
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3
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16K
soroban
S
J
need help w/ reason for m<BPC + 2(m<PBC) = 180
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1
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1K
stapel
stapel
S
Find exact values for sine, cosine, and tangent of 19pi/12
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2
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33K
smsmith
S
J
How the Zero Product Property is Used?
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2
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2K
soroban
S
S
help! how do you do proofs!
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1
Views
1K
pka
pka
T
How is cos(90 - [degrees]) equivalent to sin([degrees])?
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4
Views
6K
skeeter
skeeter
J
Formalizing Proofs: m<PBC= m<PCB; m<PAB= m<PBA
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2
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2K
JayJay06
J
K
Construct an isosceles triangle with the given sides.
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3
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2K
Denis
D
P
Geometry Problem: A band is streched around the equator.
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1
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2K
stapel
stapel
K
What is the converse, inverse, and contrapositive ?
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3
Views
2K
stapel
stapel
T
help with solving sin4x = -2sin2x [0, 2pi)
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2
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4K
galactus
G
S
Hexagon Inscribed in a Circle. Help?
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5
Views
3K
Denis
D
K
proving trig identities: 1 + sinx = (sin 1/2 x + cos 1/2 x)2
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1
Views
7K
royhaas
R
G
Trigonometric Identities
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3
Views
2K
soroban
S
S
tic marks on a circle graph
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2
Views
2K
Denis
D
P
Help me with Secant and Tangent lines please!
Replies
3
Views
3K
stapel
stapel
L
solving 3 - 3sin(Ø) - 2cos^2(Ø) = 0 for Ø
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3
Views
8K
skeeter
skeeter
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