1.If A⃗+B⃗\vec{A} + \vec{B}A+B is perpendicular to A⃗−B⃗\vec{A} - \vec{B}A−B, then which of the following options must be correct?a.A⃗⋅B⃗=0\vec{A} \cdot \vec{B} = 0A⋅B=0b.A⃗⋅B⃗≠0\vec{A} \cdot \vec{B} \ne 0A⋅B=0c.∣A⃗∣=∣B⃗∣|\vec{A}| = |\vec{B}|∣A∣=∣B∣d.∣A⃗∣+∣B⃗∣|\vec{A}| + |\vec{B}|∣A∣+∣B∣Login to continueOnly logged in users canattempt or see the solution.
