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Maths-

General

Easy

Question

A point moves so that the rra io of its distances from two fixed points is constant Its Iocus is a

PIane
Straight line
Circle
Sphere

The correct answer is: Sphere

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The equation of the plane that contains the line of intersection of the planes $chi plus gamma plus z minus 6 equals 0$ and $2 x plus 3 gamma plus z plus 5 equals 0$ and perpendicular to the $x gamma$ ‐plane is

The angle between two diagonals of a cube is

The angle between two diagonals of a cube is

Let $stack o with hat on top comma stack b with hat on top comma stack c with hat on top$ be unit vectors such that $stack o with hat on top cross times stack b with hat on top equals stack c with hat on top$ and $stack o with hat on top times stack b with hat on top equals 0 blank$ Also, $stack chi with rightwards arrow on top$ is any vectors such that $left square bracket stack x with rightwards arrow on top stack b with hat on top stack c with hat on top right square bracket equals 3 comma$ $left square bracket stack x with rightwards arrow on top stack c with hat on top stack o with hat on top right square bracket equals 4$ and $left square bracket stack x with rightwards arrow on top stack o with hat on top stack b with hat on top right square bracket equals 2$ Then $stack x with rightwards arrow on top$ is equal to

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parallel

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$Error converting from MathML to accessible text.$ equal to

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