Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
M
Verify Identy: {(sin^4x-sin^2x)/(1-sec^2x)cos^4x} = ....
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2
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3K
messa
M
D
A triangular prism has a volume of 135 cubic centimeters....
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1
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2K
skeeter
skeeter
R
Exponant is a square root?
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1
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1K
pka
pka
M
Addition formula for sine? (sin(arctanx+arctan2x)=root2/2)
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2
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2K
messa
M
M
Quadratic formula: 2sin^3x+3sin^2x-3sinx-2
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5
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4K
arthur ohlsten
A
G
How could I solve this trigonometric equation?
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4
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2K
arthur ohlsten
A
S
Work done against gravity (Batman on a rope)
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1
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3K
galactus
G
W
Need help with a Trig Identity: sec^2/tan=(sec)(csc)
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4
Views
4K
soroban
S
M
Identity? 'Show that sin(2^5x) = 2^5sinxcosx...'
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2
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2K
messa
M
M
Expressions for tan(x + y + z + w) in terms of tan(x),....
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8
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4K
galactus
G
V
Circle with a triangle poking out of it.
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8
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3K
jonboy
J
L
Trig: Voltage in an eletrical circuit is given by e=5/20pi t
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2
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1K
skeeter
skeeter
D
Equation of a line, two uknowns
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3
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1K
Denis
D
D
clock question-minutes and degrees
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2
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1K
dwill
D
S
circle-packing question: How many 1.328-diameter circles can
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8
Views
3K
Denis
D
Y
solve Tan[(theta/2) + (pi/3)] = 1, 2cos^2(theta) + cos(theta
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1
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2K
tkhunny
tkhunny
D
An isosceles right triangle is inscribed in a circle. If....
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6
Views
6K
Denis
D
Y
inverse trig expressions: simplify sin[2sin^-1(1/2)] , etc
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1
Views
5K
soroban
S
K
Verify Identity: cosx - cosx/1 - tanx = sinx cosx/sinx -...
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5
Views
10K
KR3W
K
A
parallel/perpendicular vectors...
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3
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2K
amberlianne
A
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