Question

Remaining Time: 52 minutes, 33 seconds. Question Completion Status: > Moving to another question will save this response. Question 7 For two matrices, matrix multiplication is possible only if number of columns of first matrix are not equal to number of rows of the second matrix number of columns of first matrix are equal to number of rows of the second matrix number of rows of first matrix are equal to number of columns of the second matrix number of rows of first matrix are not equal to number of columns of the second matrix → A Moving to another question will save this response.

Answer 1

let's we have two matrix one is of x×y dimension and other is of a×b dimension here 'a' is number of rows and 'b' is the number of columns.

Now the matrix product or multiplication is possible only if y=a i.e Column of the first matrix must be equal to Rows of the other or second matrix because in matrix multiplication each time it do the dot product between rows of first matrix and the columns of second matrix and the dot product is possible only if we have equal dimensions.

And the Dimension of the Resultant matrix will be x × b.

so,option(b) is correct i.e. the no. Of columns of first matrix must be eaual to no. Of rows in second matrix.