Find the value of:
`|[4,9,7],[3,5,7],[5,4,5]|`

Write the minor and cofactor of each element of second column in the following determinants and evaluate them: |[4,9,7],[3,5,7],[5,4,5]|

Find the value of |[5,3],[-7,-4]|

Find the value of |[5,3],[-7,-4]|

Find the value of: -5/4 - 7/3

Find the value of : -5/4 - 7/3

Find the value of | [5 , 9 ] ,[ 7 , -4 ] |

Find the mean of the values: 1,9,7,3,5,5,6,4,2,8, A. 3 B. 4 C. 5 D.6

Find the value of |{:(5, 3),(-7, -4):}|

find the value of |[ 5 , 3 ] , [ 7, 9 ] |

find the value of |(5,-3,7),(-2,4,-8),(9,3,-10)|