Compute equations with given variables and matrices

Suppose x=2 and y=5.

𝑧 = [ 4 1

2 3

1 7 ],

𝑚 = [ 4 5 3

5 1 7

1 3 6 ],

𝑛 = [ 3 3 5

2 6 4

1 9 1 ]

Use MATLAB command to compute the following: 𝑥𝑦^4/𝑥^2 , 𝑥𝑦^3 − 𝑥^2/𝑥^3 −1 , 𝑚 × 𝑧, sin(𝑚) , 𝑚 × 𝑛 (𝑐𝑜𝑚𝑝𝑜𝑛𝑒𝑛𝑡𝑤𝑖𝑠𝑒 𝑜𝑟 𝑒𝑙𝑒𝑚𝑒𝑛𝑡 𝑏𝑦 𝑒𝑙𝑒𝑚𝑒𝑛𝑡)

Answer 1

[Chunru]

𝑥𝑦^4/𝑥^2 : x*y^4/x^2

𝑥𝑦^3 − 𝑥^2/𝑥^3 −1: similar to above

𝑚 × 𝑧: m*z

sin(𝑚): You guess?

𝑚 × 𝑛 (𝑐𝑜𝑚𝑝𝑜𝑛𝑒𝑛𝑡𝑤𝑖𝑠𝑒 𝑜𝑟 𝑒𝑙𝑒𝑚𝑒𝑛𝑡 𝑏𝑦 𝑒𝑙𝑒𝑚𝑒𝑛𝑡): m.*n