Calculus

Given u = i - 2j + k and v = 3i + j - 2k, find each of the following:(a) u x v, (b) v x u, and (c) v x v.

Started by crobinson2013

Given u = i - 2j + k and v = 3i + j - 2k, find each of the following:(a) u x v, (b) v x u, and (c) v x v.

Started by nmorano1

Find the scalar and vector projections of 2i -5j + k in the direction of 3i - 4k.

Started by scienceeasy

Find the vector that makes equal acute angles with the positive coordinate axes and has length 2.

Started by Chloeellawright

Find a value c for which A = 2i - j + 4k and B = i + cj + 8k will be perpendicular.

Started by swpotter12

Find the angle between the vectors i + 2j - 3k and -i + 2j + k.

Started by fasfsadfdsfa

If v is a vector in the xy-plane, |v| = 7, and v makes an angle of 3/4 with the positive direction ...

Started by Bob-Dole

If v = -i + 7j and w = 4i - 4j, then find v + w.

Started by ENagel

When does the equation x2 + y2 + z2 + Ax + By + Cz + D = 0 represent a sphere?

Started by waynest

Find an equation describing all points that are equidistant from the points A(-3, 0, 4) and B(2, 1, ...

Started by vHAUNG6011

Find an equation of the sphere with centre in the xz-plane and passing through the points (0, 8, 0), ...

Started by nmorano1

Describe the intersection of the graphs of y = 3 and x2 + y2 = z2.

Started by Sportsfan2111

Describe the intersection of the graphs of y = x and y2 + z2 = 9.

Started by nramada

Describe the intersection of the graphs of y = x and y = 5 in 3-space.

Started by moongchi

Describe the intersection of the graphs of x2 + z2 = 4 and y = 2.

Started by lbcchick

Describe the set of points in 3-space defined by the equations x2 + y2 + z2 - 8z = 9, x = 3.

Started by tiara099

Describe the 3-space graph of the equation z2 = y2 + x2.

Started by geodog55

Describe the 3-space graph of the equation x2 + z2 = 4.

Started by JGIBBSON

Describe the 3-space graph of the equation x2 + y2 = 0.

Started by waynest

Find the distance between (-2, 3, 1) and (4, 1, -3).

Started by Mr. Wonderful

Find the distance between the points (2, 4, 7) and the (1, 5, 10).

Started by Pea0909berry

Describe the surface with equation x2 + y2 + z2 - 6x + 2y - 12z = 75.

Started by Bernana

Let [x] denote the greatest integer less than or equal to x, and let f(x) = [x] on the interval ...

Started by sabina

Find the Fourier series for f(x) = x2 defined on [- , ].

Started by Anajune7

Find the Fourier series of the function f having period 2 and defined by f(x) = 0 if - < x 0 and ...

Started by TFauchery