Enter the expression asin(x)+15asin(x)+15 , where asin(x)asin(x) is the inverse sine function. Alternatively, you may enter the inverse sine function in either of the following forms, which are also accepted: arcsin(x)arcsin(x) or sin−1(x)sin−1(x).

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.

12000j is work done