Help need very fastPlease help me answer #3 fast please

and g are linearly independent in C(R). 3. (5 pts. ) Let V be a vector space and let S, C $2 C V. Show that if $2 is linearly independent, then so is $1. 4. (5 pts.) Let A E M. (R) be an upper triangular matrix for which the diagonal entries are nonzero (that is Ajj # 0) for all i = 1.2. We ma nsider the The 72