A position of a particle moving on an x axis is given by x=7•4 + 9•2t - 2•1 t^3, with x in meters and t in seconds. what is its velocity at t=3•5s? is the velocity, or is it Continuously changing?​

The velocity at that time would be . The velocity of this particle is continuously changing.

Explanation:

Differentiate the expression for position with respect to time to find an expression for velocity.

.

Hence, at , velocity would be .

Since velocity changes with time , the velocity of this particle is continuously changing.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.

connect the batteries in series and hope