Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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Volume calculation of 4 superimposing spheres
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1
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1K
nanofreak
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solve the equation sec(2x)cos(6x) + 1 = 0
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6
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2K
hndalama
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Please help w/ 3sinx = 2,1; 2 + sinx = 0; cos^3x=0,512; cos^2x - 3sin^2x=0; cos^2x +
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1
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1K
stapel
stapel
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Need a hint with a geometry problem (ABC is isosceles; find MH_3)
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3
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2K
hoosie
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Matrices
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1
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1K
stapel
stapel
K
Congruent Triangle Proofs
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3
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2K
HallsofIvy
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3D Triangles (VERTICES), and Vectors (Help)
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5
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2K
pka
pka
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Rose Curve Proof
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8
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2K
Steven G
Steven G
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Adding waves of the same frequency! If I have v_1 = 3sin t and v_2 = 2cos t...
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2
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1K
Vulcan
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need help with part b of this question: prove that tan(pi/12)= sqrt(7 - 4sqrt3)
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6
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2K
Deleted member 4993
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find exact values for cos(x-y) if...
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5
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2K
Steven G
Steven G
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prove this identity: sin(3x) + sin(x) = 2sin(2x)cos(x)
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5
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6K
Ishuda
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Equilateral triangle: find distance from corners to center of mass
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1
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2K
Harry_the_cat
Harry_the_cat
A
edge-on views of plane and data
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0
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774
AGuiXe
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Writing Assignment Trig
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1
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822
Deleted member 4993
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F
Graph Theory Problem: why no vertices of order 1?
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1
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1K
ksdhart2
K
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Triangle perimeter SSAT Q: if area of rt triangle is 9, one leg is 3, find perimeter
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4
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2K
tathagata7
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C
Question regarding angles and distances on a plane
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3
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2K
stapel
stapel
A
trigonometry question: A manufacturer is making a bike where...
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2
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2K
stapel
stapel
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geometry proof: Given RM = SN, <MRS = <NSR, prove SM = RN
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0
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4K
tom1242
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