Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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( sec^2(x) + csc^2(x) ) - ( tan^2(x) - cot^2(x) )
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2
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2K
galactus
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Modeling a Guitar Note
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2
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2K
Slipery
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M
Largest # of Identical Pieces
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2
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2K
Mustang1910
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planes 2x + 3y - z = 2, 3x - 3y + z = 4, x - y + 2z = 5
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3
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2K
soroban
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hypotenuse 4 times length of perp.: find acute angle
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2
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3K
stapel
stapel
A
Change of Velocity
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2
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2K
TchrWill
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C
Trig: tan2x=(-24/7), find sinx and cosx
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1
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3K
stapel
stapel
J
Evaluate each expression
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2
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5K
nycfunction
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C
Trig: solve (cosx)^2 - 2sinxcosx - (sinx)^2 = 0 on [0,2pi]
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8
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11K
pka
pka
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another construction
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2
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2K
Deleted member 4993
D
S
center of a circle: prove construction is correct
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3
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3K
soccerisgreat
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triangle proof: Show that a = b cosC + c cosB
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5
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9K
Deleted member 4993
D
M
Length of Tangents to Circles: root of h^2+k^2+2hf+2gk+c
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9
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3K
Deleted member 4993
D
G
Liters of Water Wasted in April
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2
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2K
geekily
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B
Word problem -airplane altitude
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1
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2K
stapel
stapel
H
grr.... so fustrated!!!!
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5
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2K
galactus
G
N
cool rectangle
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1
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3K
stapel
stapel
N
resurfacing in square yards
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1
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2K
stapel
stapel
N
right cone
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1
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2K
wjm11
W
B
The smokestake and the Tower
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1
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2K
soroban
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