Geometry and Trig

Ask your questions about all levels of geometry from elementary school through college.
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solving linear systems of equations using matrices
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2
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2K
pka
pka
A
Proving trig identities: sec x + csc x = (1 + tan x)/sin x
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1
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4K
arthur ohlsten
A
A
Triginometric eqns: 5 - 7sin x = 2cos^2 x on [0, 2pi]
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2
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2K
arthur ohlsten
A
S
Solving triangle: A train travels 3.5 km on a straight track
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4
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9K
stapel
stapel
W
Right Angle Trigonometry: graph of y = tan x
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1
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2K
stapel
stapel
E
Exploring Angles: true or false: all right angles are congru
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4
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6K
emmaiskool242
E
S
Identity for Cos4x
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3
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4K
galactus
G
S
cos4x again.....
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2
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3K
soroban
S
K
vector word problems.... i and j units
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0
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3K
k9fireman
K
A
Tricky word prob. from trig class: A train rolls down a trac
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5
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3K
tkhunny
tkhunny
2
point (2, k) lies on (x-3)^2 + (y-4)^2 = 16; find k
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5
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5K
2Advanced
2
W
Trigonometry: A regular octagon is inscribed in a circle of
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6
Views
17K
galactus
G
C
verifying trig identity: (CosX+1)/(tan^2x) = (CosX)/(secX-1)
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3
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7K
Mrspi
M
G
Eqn of Circle Circumscribing Triangle w/ vertices at
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3
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2K
Denis
D
G
Find Angle For Pilot: A plane is flying from Anchorage to Fa
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5
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2K
Mrspi
M
A
Perform the calculation: 90° - 74° 57' 15"
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8
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9K
skeeter
skeeter
R
Verify Trig. Identity: cos(-x) / 1+tan(-x) - sin(-x) / 1+cot
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3
Views
2K
rebmik
R
A
Find exact values of six trig functions, given angle through
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1
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3K
stapel
stapel
A
Use logs to solve 3e7x + 2 = 6 symbolically
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1
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1K
stapel
stapel
R
Trig. Identity: 8sin^2(x/2)cos^2(x/2)=1-cos2x
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2
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4K
rebmik
R
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