determine whether the sequences arithmetic or not if it is find the common difference of 2 , -2 , -6 -10

Derivatives of trigometric functions: [tex]y = tan^{4} x - sec^{4} x[/tex]​

Each of the four neighbors namely ericka, nico, mac and tim has a different course (bsed, bscoe, bsn, bsit). from the following clues, determine the course of each individual: 1. nico enrolled 1 day ahead of his friend whose course is bscoe and 1 day late than his friend whose course is bsn. 2. mac and his friend whose course is bsit are both the same age and youngest member of this group. 3. ericka is older than her friend whose course is bsed.

How to compute this-original price 2,5000,000 and regular discaount 8%. what is the discount and the selling price​