If and are two vectors

PHYSICS · Single correct · CBSE · Physics · System of Particles and Rotational Motion · System of Particles and Rotational Motion

Problem

\mathbf{a}

and

\mathbf{b}

are two vectors, then the value of

(\mathbf{a}+\mathbf{b})\times(\mathbf{a}-\mathbf{b})

is (1)

2(\mathbf{b}\times\mathbf{a})

(2)

-2(\mathbf{b}\times\mathbf{a})

(3)

\mathbf{b}\times\mathbf{a}

(4)

\mathbf{a}\times\mathbf{b}