Writing a General Formula of an Arithmetic Sequence

ABC on Instagram: "Whose responsibility do you think it should be to buy condoms? #condoms #1980s #australian"

Ariel_yu on Instagram: "Leg Press - Muscle Activation by Foot Position 1. Narrow Stance (Close Foot Position) Places greater emphasis on the vastus lateralis (outer quad). 2. Wide Stance Increases activation of the adductors and the vastus medialis (inner quad). 3. High Foot Placement Shifts focus to the glutes and hamstrings. 4. Standard Foot Placement Provides a more balanced activation of the quadriceps overall. #legpress #legtraining #homegymequipment"

Definition of the Derivative