Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
B
Differentiate sin(2x+y)
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2
Views
713
Bobby Bones
B
B
Using Hyperbolic functions, Solve sinh(2x) = 8cosh(x). Give answer in ln.
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6
Views
2K
Bobby Bones
B
I
How to prove sin 45 = 1/root 2 and root 2/2 same?
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14
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18K
Bobby Bones
B
O
Challenge Geometry Prob: Suppose segment XY is divided into millions of congruent...
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7
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2K
Harmless Drudge
H
D
need help: Greg and Kristine are on opposite ends of a zip line that crosses a gorge.
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13
Views
3K
topsquark
topsquark
shahar
Reading Comphernsive - Plato's cricle
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8
Views
1K
shahar
shahar
I
How do we get (root) 1000 = 10 (root) 10?
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2
Views
1K
Deleted member 4993
D
shahar
Building double angles in isosceles triangle by compasses and striaghtedge
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6
Views
1K
Steven G
Steven G
shahar
Geometric Q w/ Lack of Data: "AB is hypotenuse of ABC, also biggest side of some..."
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6
Views
1K
Dr.Peterson
Dr.Peterson
S
Please Help to find total length of thick line around overlaid rectangles
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8
Views
4K
Sundari
S
B
Differential geometry
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0
Views
770
Black vegetable
B
Y
If vertices of ?ABC are A(-5,0), B(5,0) and C(0,8), what is area?
Replies
5
Views
2K
Steven G
Steven G
E
Urgent help needed: |a|^2 = (a_1; a_2; a_3)^2 = a_1^2 + a_2^2 + a_3^2
Replies
2
Views
857
pka
pka
shahar
inner angle: If alpha is 90 degree, ABCD is trapezoid, AB=CD. What poly do I get?
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5
Views
1K
shahar
shahar
shahar
Prove polygon w/ n sides has n vertices; w/ n vertices has n sides
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6
Views
1K
HallsofIvy
H
A
Trapezoid: ABCD is a trapezoid whose diagonals AC and BD intersect at point E.
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14
Views
5K
Steven G
Steven G
L
Locus: Given pts a=(5,-3), b=(1,4), find locus of c such that area of triangle abc=10
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9
Views
2K
Locus
L
J
Simpsons formula and the volume of a pyramid frustum
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1
Views
1K
Dr.Peterson
Dr.Peterson
S
trigonometric equations: How to solve tan(x) - sin(x) = 5\12 ?
Replies
1
Views
991
tkhunny
tkhunny
V
This one has me stumped - entrance exam for junior high school in Japan
Replies
16
Views
3K
vancouverron
V
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