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Geometry and Trig
Ask your questions about all levels of geometry from elementary school through college.
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Trigonometric equation: solving sin 2theta = cos 7pi/4
Guest
Mar 17, 2007
Replies
3
Views
3K
Mar 23, 2007
Guest
G
B
Product Identity: sin^2 t - tan^2 t = - (sin^2t)(tan^2t)
baselramjet
Mar 23, 2007
Replies
11
Views
3K
Mar 23, 2007
stapel
G
Show that {Trigonometric identities}
Guest
Mar 23, 2007
Replies
1
Views
1K
Mar 23, 2007
arthur ohlsten
A
G
Right triangles (the tangent ratio)
Green1
Mar 22, 2007
Replies
2
Views
2K
Mar 22, 2007
soroban
S
N
Find the directrix of a parabola
norton
Mar 22, 2007
Replies
1
Views
887
Mar 22, 2007
soroban
S
L
if angle a is an acute angle, and sin a = .9540 find tan A??
lena
Mar 22, 2007
Replies
1
Views
1K
Mar 22, 2007
skeeter
L
its a right triangle and the smallest angle is 20 degrees...
lena
Mar 22, 2007
Replies
1
Views
1K
Mar 22, 2007
stapel
L
right triangle, and one degree is obviously 90, and other is
lena
Mar 22, 2007
Replies
2
Views
749
Mar 22, 2007
stapel
D
range of cos theta, sin theta, and tan theta
defeated_soldier
Mar 21, 2007
Replies
6
Views
5K
Mar 22, 2007
arthur ohlsten
A
A
Given: DC bisects AB and AC is congruent to BC; Prove:....
aggies1
Mar 21, 2007
Replies
1
Views
1K
Mar 21, 2007
stapel
S
ellipse x^2 + 2y^2 -6x+4y+7=0: find vertices, foci, graph
summergrl
Mar 20, 2007
Replies
5
Views
4K
Mar 20, 2007
galactus
G
T
angle complements, supplements; reference angles; etc
TVigz42
Mar 20, 2007
Replies
2
Views
1K
Mar 20, 2007
stapel
T
A pilot has just started on the glide path for landing...
TVigz42
Mar 19, 2007
Replies
2
Views
8K
Mar 20, 2007
TVigz42
T
S
[MOVED] Find eqn of parabola through (-2,3), (0,3), (1,9)
summergrl
Mar 19, 2007
Replies
5
Views
1K
Mar 19, 2007
summergrl
S
J
find eqn of tangent fcn with given period, vertical shift,
Jen123
Mar 19, 2007
Replies
1
Views
1K
Mar 19, 2007
skeeter
L
Looking for formulas for areas of trapezoids, parallelograms
leo
Mar 18, 2007
Replies
1
Views
917
Mar 18, 2007
jwpaine
J
N
[MOVED] domains of sine, cosine, and tangent
nobes
Mar 18, 2007
Replies
2
Views
1K
Mar 18, 2007
jwpaine
J
J
find coord's of square's 4th corner given coord's of other 3
JayJay06
Mar 16, 2007
Replies
3
Views
1K
Mar 17, 2007
soroban
S
J
Isosceles triangle: What could be coord's of its vertices?
JayJay06
Mar 16, 2007
Replies
2
Views
1K
Mar 17, 2007
Mrspi
M
D
questions on similar triangle
defeated_soldier
Mar 15, 2007
Replies
5
Views
2K
Mar 16, 2007
Denis
D
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