Provide an Appropriate Response

question 48

Essay

Provide an appropriate response.
- $\text { Prove that if } \mathbf { v } \text { and } \mathbf { u } \text { are differentiable functions of } t \text {, then } \frac { \mathrm { d } } { \mathrm { dt } } ( \mathbf { u } + \mathbf { v } ) = \frac { \mathrm { d } \mathbf { u } } { \mathrm { dt } } + \frac { \mathrm { d } \mathbf { v } } { \mathrm { dt } } \text {. }$

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Definitions:

Product Life Cycle

The stages a product goes through from introduction to the market, through growth and maturity, and eventually into decline.

Decline

A decrease in the value, quantity, quality, or strength of something, often used in economic contexts to describe the downturn in markets, sales, or production.

Phase Out

The planned discontinuation or gradual removal of a product, service, or technology from the market or production line.

Mobile Marketing

Mobile marketing is a multi-channel, digital marketing strategy aimed at reaching a target audience on their smartphones, tablets, and other mobile devices, via websites, email, SMS, social media, and apps.