Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
L
Trig Solving eqns: 2 sin x + 1 = 0, cos x (2 sin x - 1) = 0,
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5
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3K
Louise Johnson
L
L
period of y = sin(3x) / find values, given period / etc
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5
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12K
Louise Johnson
L
N
Finding Circumference, given that radius is 12
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2
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2K
Mrspi
M
T
Collinear points, with segment lengths: find the length
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2
Views
7K
Denis
D
L
Trig Fcns part 4: value of sin^3(-pi/2) + 2cos^2(pi/4), etc
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2
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2K
Louise Johnson
L
L
Trig Fcns part 3: value of sin^2(11pi/6), cos^-1(-sqrt3/2),
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2
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4K
Louise Johnson
L
L
Trig Circular Functions: exact value of sec 7pi/6, etc
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3
Views
19K
pka
pka
B
De Moivre's theorem: x^2 +(-1-3i)x+(-2+2i)=0
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3
Views
3K
btrfly24
B
R
find sine and tangent of angle, given cos(angle) = 4/x
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5
Views
3K
Rictus
R
S
Find height of intersection of 6-foot, 12-foot poles
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1
Views
3K
tkhunny
tkhunny
C
Three Peg Puzzle: How many moves to move all 64 rings?
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4
Views
11K
soroban
S
M
"Discover Properties of Midsegments"
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1
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2K
tkhunny
tkhunny
Y
Find the equation of the line through (-1, 3) and (4, 1)
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3
Views
2K
tkhunny
tkhunny
M
Solve 6 e^x tan(x) - 3 tan(x) + 8 e^x - 4 = 0
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5
Views
2K
stapel
stapel
M
inequality: solve sin(x - pi/2) + 1 < 0.5 for 0 < x &l
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7
Views
3K
Math wiz ya rite 09
M
V
Please check ans: A light plane has a cruising speed of....
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0
Views
1K
val1
V
B
A smuggler's boat sets out on a course that makes a....
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5
Views
3K
btrfly24
B
B
finding magnitude of resultant force, direction of movement
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2
Views
2K
btrfly24
B
M
Series: Find the sum of 4/3 + 6/9 + 8/27 + 10/81 + ....
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4
Views
3K
soroban
S
H
Geometry help...
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3
Views
2K
hamnet
H
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