Trigonometry problem involving vectors
134422
Airplane ground speed and direction, given airspeed and wind
123808
How would I solve the following problem involving elementary matrices?
126630
How to compute the integral of trigonometic function with multiple angle
80895
half sine and half cosine quaternions
148871
Sign of the vector (especially $g$) while calculating
124761
Solve for a vector in the equation
12014
Solving a multi-variable trig sum to find the max separation btwn 2 ellipses
148963
The Ellipse Problem - finding an ellipse inside a triangle
136644
Cyclic Quadrilateral Problems
16270
Trigonometry question: $\sin^2(A) + \sin^2(B) - \sin^2(C) = 2\sin(A)\sin(B)\cos(C).$
35698
Given vectors $u,v, i$, find vector $w$ such that $i$ is incenter of triangle $[u,v,w]$
89003
Finding a trigonometric polynomial
127380
Use vectors to prove $\cos(\beta - \alpha) = \cos \alpha \cos\beta + \sin\alpha \sin\beta$
133123
Find the Unit Vector of a Three Dimensional Vector
130278
Vector Applications in Euclidean Geometry
67988
Trigonometric curiosity
120444
Trigonometric Triangle Equality