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...Calculus iii math fall mw pm f phsc homework exams solutions tomaszprzebinda contents some linear algebra motion along a curve functions of several variables multiple integrals exam in class study guide vector final friday am the usual classroom here we follow sections text following is due on problem exercise page there are many such examples one both perpendicular to and each other statement false vectors u cos sin v make angle degrees with w but sum them equal which makes zero true two nonzero an ninety means that their dot product thus assumption hence let then av for number since see our example b talking about real triangle have equality equivalent this cosine between therefore they can t form c obviously d plane be line equation x y z equivalently orthogonal these panes not parallel planes non empty intersection distance fact point get familiar wolframalpha com order able check your answers do complicated computations position projectile r vcos gt vsin velocity speed p clearly m...