Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
A
Solve 3 cos^2(sigma) + 2 sin(sigma) = 1
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1
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2K
skeeter
skeeter
P
triangle has sides of length 6 and 11. what int. length...?
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2
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2K
pka
pka
D
right triangle trig: finding angle of elevation of sun
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2
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2K
dianeson121
D
A
can some hlep me solve this trig problem
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1
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3K
skeeter
skeeter
P
[Precalc] Trig Identities and Equations
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2
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prefix
P
K
Triangle GHI is a right triangle; GH=5, HI= x+4, GI= 2x-3
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1
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2K
arthur ohlsten
A
J
Find area of reg. pentagon w/ s = 7 and apothem of 4.8
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4
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2K
JayJay06
J
L
please tell me if i did my trig work right.
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2
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1K
galactus
G
B
cos x sin y = 1/2 sin(sin(x + y) – sin (x - y))?
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4
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8K
baselramjet
B
N
Find the vertices of the ellipse x^2/36 + y^2/12 = 1
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4
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2K
Mrspi
M
G
Trigonometric equation: solving sin 2theta = cos 7pi/4
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3
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3K
Guest
G
B
Product Identity: sin^2 t - tan^2 t = - (sin^2t)(tan^2t)
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11
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4K
stapel
stapel
G
Show that {Trigonometric identities}
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1
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2K
arthur ohlsten
A
G
Right triangles (the tangent ratio)
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2
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3K
soroban
S
N
Find the directrix of a parabola
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1
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1K
soroban
S
L
if angle a is an acute angle, and sin a = .9540 find tan A??
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1
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2K
skeeter
skeeter
L
its a right triangle and the smallest angle is 20 degrees...
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1
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2K
stapel
stapel
L
right triangle, and one degree is obviously 90, and other is
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2
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1K
stapel
stapel
D
range of cos theta, sin theta, and tan theta
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6
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7K
arthur ohlsten
A
A
Given: DC bisects AB and AC is congruent to BC; Prove:....
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1
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stapel
stapel
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