Find the derivative of `y = sec^2 2x`

Explanation

`ararrp,r,brarrq,s,crarrq,r,drarr.`
a. p,q,r
The graph of `y=|x^(2)-2|x||:`

From the graph, `dy//dx` is negative for `(p),(q),(r)`
b. q,s
The graph of `y=|log|x||:`
ltbvrgt From the graph, `dy//dx` is negative for (q),(s).
c. q,r
`y=x[x//2]={{:(-2x",",-4lexlt-2),(-x",",-2xlexlt0),(0",", 0le xlt 2),(x",", 2ltxlt4):}`
Hence, `dy//dx` is negative for (q), (r)
d. r
The graph of `y=|sin x|`

From the graph, `dy//dx` is negative for (r).