LET Linear Algebra Reviewer

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Key linear algebra review for LET.

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Rosemarie Sullera

Philippines

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LET Linear Algebra Reviewer


LET Linear Algebra ReviewerVersion en ligne Key linear algebra review for LET. par Rosemarie Sullera 1 What is the identity matrix of size 3x3? a I3 = [[1,1,1],[1,1,1],[1,1,1]] b [[1,0],[0,1]] c I3 = [[1,0,0],[0,1,0],[0,0,1]] d [[0,0,0],[0,0,0],[0,0,0]] 2 If A is invertible, what is A^(-1)A? a Zero matrix b Identity matrix c A d Determinant of A 3 Which operation preserves matrix addition? a Determinant invariance b Associativity c Distributivity over scalar multiplication d Non-commutativity 4 What is the rank of a zero matrix? a 0 b Full rank c Undefined d Dimension of row space 5 Eigenvalues are solutions to which equation? a det(A-λI)=0 b trace(A)=0 c det(A)=0 d A·v=0 6 What is the dimension of column space of an m×n matrix A? a Rank(A) b Number of rows m c Determinant of A d Number of columns n 7 Which process finds a vector v with Av=λv? a Row reduction b Eigenvalue problem c Singular value decomposition d LU decomposition 8 What does a diagonal matrix do to basis vectors? a Adds vectors together b Transposes them c Scales each basis vector d Zeroes all entries 9 If A is symmetric, what is true about A^T? a A^T is unrelated b A^T equals inverse of A c A^T = -A d A^T = A 10 Which property holds for linear transforms T: R^n→R^m? a T(u+v)=T(u)T(v) b T(u+v)=T(u)+T(v) c T(u)=det(T) d T(αu)=αT(v) 11 What is the chemical formula for water? a H2O2 b HO c H2O d HO2 12 Which planet is known as the Red Planet? a Jupiter b Saturn c Mars d Venus 13 What gas do plants primarily absorb for photosynthesis? a Hydrogen b Nitrogen c Carbon dioxide d Oxygen 14 What is the speed of light in vacuum? a 150,000 km/s b 3,000 km/s c 299,792 km/s d 500 km/s 15 The process by which a solid changes to a liquid is called? a Melting b Condensation c Freezing d Evaporation 16 Which organ pumps blood through the human body? a Heart b Brain c Lungs d Liver 17 What is the center of an atom called? a Nucleus b Proton c Electron d Neutron 18 What type of energy is stored due to position? a Potential energy b Chemical energy c Thermal energy d Kinetic energy 19 Which is not a noble gas? a Argon b Oxygen c Neon d Helium 20 What phenomenon explains a rainbow? a Refraction of light b Absorption c Reflection d Diffraction

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LET Linear Algebra Reviewer

Test

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

Top Jeux

Test

Photosynthesis vs Cellular Respiration - Practice Quiz

Test

Spanish Alphabet Listening

Test

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Practice Quiz - Punnett Square, Variation, and Mutations

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LET Linear Algebra ReviewerVersion en ligne

par Rosemarie Sullera

What is the identity matrix of size 3x3?

If A is invertible, what is A^(-1)A?

Which operation preserves matrix addition?

What is the rank of a zero matrix?

Eigenvalues are solutions to which equation?

What is the dimension of column space of an m×n matrix A?

Which process finds a vector v with Av=λv?

What does a diagonal matrix do to basis vectors?

If A is symmetric, what is true about A^T?

Which property holds for linear transforms T: R^n→R^m?

What is the chemical formula for water?

Which planet is known as the Red Planet?

What gas do plants primarily absorb for photosynthesis?

What is the speed of light in vacuum?

The process by which a solid changes to a liquid is called?

Which organ pumps blood through the human body?

What is the center of an atom called?

What type of energy is stored due to position?

Which is not a noble gas?

What phenomenon explains a rainbow?