Webb13. (a2 −a + 2) (3 a2 −5a −1) = =3a4 −5a3 −a2 −3a3 +5a2 +a +6a2 −10 a −2 =3a4 −8a3 +10 a2 −9a −2 14. (a4 +a3 −4a2 −7a + 1) ( −a3 +5a2 +a −1) = =−a7 +5a6 +a5 −a4 −a6 +5a5 +a4 −a3 +4a5 −20 a4 −4a3 +4a2 +7a4 −35 a3 −7a2 +7a −a3 +5a2 +a −1 = =−a7 +4a6 +10 a5 −13 a4 −41 a3 +2a2 +8a −1 Webb11 jan. 2024 · Answer: =−14a3−2a2+12Step-by-step explanation:−5a3−7a2+3−9a3+5a2+9=−5a3+−7a2+3+−9a3+5a2+9Combine Like …
Acap 2 Conceptos Basicos de Algebra - VSIP.INFO
WebbFind step-by-step Linear algebra solutions and your answer to the following textbook question: Determine whether the following sets are subspaces of $$ R^3 $$ under the operations of addition and scalar multiplication defined on $$ R^3. $$ Justify your answers. $$ W_1 = \{(a_1,a_2,a_3) \in R^3: a_1 = 3a_2\text{ and }a_3 = -a_2\} $$ . Webb答案. 数列满足:,当时∑∑,,当n=1时,成立,.,①②由①-②得,,.(1)由题设知,当n≥2时,nan=n②i=1i•ai-n−1②ii•ai=1,由此能求出 {an}的通项公式.(2)由bn=n•2n,知Sn=1•21+2•22+3•23…+n•2n,由此利用错位相减法能够求出 {bn}的前n项和Sn.. fisher boy fish fillets
Algebra - Páginas de Flipbook 51-100 AnyFlip
WebbBasic Math Simplify (2a-3)^2 (2a − 3)2 ( 2 a - 3) 2 Rewrite (2a−3)2 ( 2 a - 3) 2 as (2a−3)(2a−3) ( 2 a - 3) ( 2 a - 3). (2a−3)(2a −3) ( 2 a - 3) ( 2 a - 3) Expand (2a−3)(2a− 3) ( 2 … Webb14 mars 2024 · Simplify: (a) 6x + 3 − 5x (b) −2 + 2y − 1 (c) 3a − 7 − a + 4 (d) 3x − 2y + 5x + 6y (e) −8t + 12 − 2t − 17 (f) 2a2 + 7a − 5a2 − 3a (g) 9x2 − 7x + 4 − 14x2 − 5x − 7 (h) 3a − 4b − 2c + 4a + 2b − c + 2a − b − 2c ISBN: 9781107679573 Photocopying is restricted under law and this material must not be transferred ... Webb12. An m × n matrix A is called upper triangular if all entries lying below the diagonal entries are zero, that is, if Aij = 0 whenever i > j. Prove that the upper triangular matrices form a subspace of Mm × n(F). 13. canada study permit living expenses