Answer:
Step-by-step explanation: Product is the first and the foremost element of marketing-mix. If the product itself is defective no other element can improve its performance.
A firm expresses itself through its products and services. Therefore, planning and development of products is a vital issue in business.
Answer:

Step-by-step explanation:
Given the polynomials:

On Inspection

By the Spanning Theorem
If one vector in S is a linear combination of the others, we can delete it and get a subset (one vector smaller)
that has the same span.
Therefore, since 

are linearly independent because
cannot be written in terms of
.
Therefore, 