Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
M
Use tan to determine angle
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13
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5K
mmm4444bot
mmm4444bot
J
Need to prove identity: cotA(secA-cosA)=sinA
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2
Views
4K
mathmathmath93
M
D
solving trig identity: sinx = 1 - 2sin^2(pie/4 - x/2)
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4
Views
4K
Deleted member 4993
D
E
factoring help for solving 2sin^2-sin-1=0
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4
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3K
stapel
stapel
S
Trigonometric Roots of sin4x = -(1/sqrt[2]) on 0 <= x <= 2pi
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4
Views
3K
mmm4444bot
mmm4444bot
L
Find measure for firgure ABC?
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7
Views
2K
mmm4444bot
mmm4444bot
L
Exterior Angles and Angle Relationship.
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7
Views
2K
lectromagnet94
L
L
  • Locked
need help with Geometry Take Home Test: please complete all!
Replies
8
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5K
Denis
D
E
formulae for adding to cosines
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2
Views
2K
soroban
S
C
calculating the number of planes in a figure
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6
Views
4K
CJD
C
M
fencing three sides, shared fence down middle; find dim.
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7
Views
4K
TchrWill
T
S
Calculation of 10 height values of physical blocks
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2
Views
1K
Denis
D
N
Converting Trigonometric Expressions: cotY/cscY+1; cscY-1/co
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2
Views
4K
mmm4444bot
mmm4444bot
M
Angle Addition Postulate and Angle Bisectors
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2
Views
4K
pka
pka
J
Vectors: Drift Angle and New Heading (Airplane vs Wind)
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6
Views
5K
mmm4444bot
mmm4444bot
R
how to do any proof
Replies
5
Views
3K
mmm4444bot
mmm4444bot
S
In triangle ABC, AB=8, BC=6, AC=12; find value of X
Replies
7
Views
14K
mmm4444bot
mmm4444bot
J
Simple Harmonic Motion of buoy: write eqn describing motion
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2
Views
4K
Deleted member 4993
D
F
Sine Cosine Tangent: used tan, got 32/x, 2.275=32/x, find x
Replies
2
Views
2K
mmm4444bot
mmm4444bot
S
How to prove this trig identity? 1/cosx -cosx = sinx tanx
Replies
1
Views
9K
peekaboos
P
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