Fermi · Concept Library · Courses · Books · Problems · Simulations · Math Wiki · High School Fermi › Problems Let r ⃗ = ( a ⃗ × b ⃗ ) sin x + ( b ⃗ × c ⃗ ) cos y + ( c ⃗ × a ⃗ ) \vec{r} = (\vec{a} \times \vec{b}) \sin x + (\vec{b} \times \vec{c}) \cos y + (\vec{c} \times \vec{a}) r = ( a × b ) sin x + ( b × c ) cos y + ( c × a )
Mathematics
Problem Let r ⃗ = ( a ⃗ × b ⃗ ) sin x + ( b ⃗ × c ⃗ ) cos y + ( c ⃗ × a ⃗ ) \vec{r} = (\vec{a} \times \vec{b}) \sin x + (\vec{b} \times \vec{c}) \cos y + (\vec{c} \times \vec{a}) r = ( a × b ) sin x + ( b × c ) cos y + ( c × a ) a ⃗ , b ⃗ \vec{a}, \vec{b} a , b c ⃗ \vec{c} c r ⃗ \vec{r} r 3 a ⃗ + 5 b ⃗ + 2 c ⃗ 3\vec{a} + 5\vec{b} + 2\vec{c} 3 a + 5 b + 2 c sec 2 y + csc 2 x + sec y csc x \sec^2 y + \csc^2 x + \sec y \csc x sec 2 y + csc 2 x + sec y csc x Browse the problem library