Khan Academy
7 713 vidéos, +5 400 000 abonnés



duréevues
Finding term in recursively defined geometric sequence3:462 162
Finding term of explicitly defined geometric sequence1:374 284
Finding recursive definition of arithmetic sequence3:603 835
Examples finding terms of arithmetic sequences from definition3:387 314
Generating inputs and outputs of a function4:104 068
Next term in arithmetic sequence examples1:705 571
Deriving novel units3:273 510
Manipulating units of work and power2:483 980
Linear equations with unknown coefficients5:355 417
Energy equation10:565 214
Equation for ellipse from graph3:355 407
Identifying graph from equation1:403 179
Graphing circles exercise examples2:905 217
Center and radius of circle from graph3:504 886
Graphing circle from equation exercise5:146 512
Equation of circle from graph5:407 221
Itrepreting periodicity of algebraic models3:212 851
Interpreting algebraic models3:002 024
Interpreting intersections of functions4:502 376
Graphically interpreting solutons of equations2:371 785
Exponential model word problem example4:503 715
Example evaluating exponential model1:342 273
Logarithm change of base examples6:435 245
Constructing linear and exponential model from data5:572 246
Creating exponential model from data6:561 583
Changing units when interpreting exponential model4:222 358
Manipulating exponential for interpretation4:212 208
Interpreting time in exponential models6:431 953
Interpreting exponential growth examples6:542 541
Solving more complex exponential equations7:203 989
Solving exponential equations4:575 015
Identifying functions as even or odd7:233 076
Adding and subtracting rational expressions with like denominators3:458 954
Equivalent expressions after multiplying and dividing rational expressions5:567 344
Designing radical equation for extraneous solution4:573 043
Identifying extraneous solution for radical equation5:235 246
Analyzing positive and negative intervals of polynomials8:381 095
Finding real roots of polynomial6:453 888
Finding roots or zeros of polynomial9:907 951
Alternative method for factoring polynomial3:003 865
Function mapping diagram to test invertibility4:403 453
Example of functions that are not inverses4:124 326
Verifying function inverses example6:414 248
Evaluating composite function using graphs3:206 996
Evaluating composite functions using tables4:108 325
Manipulating unknown variables example2:412 553
Equivalent expressions with unknown variables1:353 687
Exponential from graph with negative initial value6:702 573
Exponential function from graph example4:602 942
Determining common ratio and initial value for exponential7:205 107
Initial value and common ratio of exponential functions5:2714 433
Solving exponent equation using exponent properties2:395 598
Simplifying rational exponent expressions2:315 637
Simplifying rational expression with rational exponents3:5011 754
Rewriting square root of fraction4:418 312
Using expression structure to solve quadratic3:558 886
Time dilation | Special relativity | Physics | Khan Academy9:155 743
Irregular Plural Nouns, Part IV | The parts of speech | Grammar2:4217 543
BONUS VIDEO – Origin of the Mutant Plural | The parts of speech | Grammar5:5316 653
Irregular plural nouns, Part III | The parts of speech | Grammar5:7017 880
Concrete and abstract nouns | The parts of speech | Grammar3:4318 695
Common and proper nouns | The parts of speech | Grammar2:5225 944
Finding an in-between frame of reference | Special relativity | Physics | Khan Academy8:122 668
Calculating neutral velocity | Special relativity | Physics | Khan Academy6:452 286
Einstein velocity addition formula derivation | Special relativity | Physics | Khan Academy7:375 424
Applying Einstein velocity addition | Special relativity | Physics | Khan Academy6:233 573
Lorentz transformation for change in coordinates | Physics | Khan Academy5:603 203
Origins of the Cold War11:588 549
Irregular Plural Nouns, Part I | The parts of speech | Grammar | Khan Academy2:3428 1091 liste
Irregular Plural Nouns, Part II | The parts of speech | Grammar | Khan Academy7:2324 4141 liste
Introduction to singular and plural nouns | The parts of speech | Grammar | Khan Academy4:3533 8031 liste
Introduction to nouns | The parts of speech | Grammar | Khan Academy4:2858 6341 liste
Lorentz transformation derivation part 3 | Special relativity | Physics | Khan Academy11:222 872
Lorentz transformation derivation part 1 | Special relativity | Physics | Khan Academy10:554 133
Deriving Lorentz transformation part 2 | Special relativity | Physics | Khan Academy6:802 251
Algebraically manipulating Lorentz transformation | Physics | Khan Academy8:103 648
Evaluating a Lorentz transformation | Special relativity | Physics | Khan Academy8:413 369
Introduction to the Lorentz transformation | Special relativity | Physics | Khan Academy8:217 532
Angle of x' axis in Minkowski spacetime | Special relativity | Physics | Khan Academy7:226 460
Measuring time in meters in Minkowski spacetime | Physics | Khan Academy4:585 199
Introduction to special relativity and Minkowski spacetime diagrams | Khan Academy13:4410 183
Galilean transformation and contradictions with light | Physics | Khan Academy8:406 069
Starting to set up a Newtonian path–time diagram | Physics | Khan Academy7:555 769
Visualizing multiple Newtonian path–time diagrams | Physics | Khan Academy9:385 385
Correlation coefficient intuition examples7:213 905
Ordering triangle sides and angles2:493 209
Vector components from magnitude and direction10:162 095
Angles of vectors from components9:101 995
More examples finding vector angles6:421 292
Combined vector operations example5:592 410
Adding and subtracting vectors7:423 620
Visually adding and subtracting vectors6:222 379
Examples from understanding scalar multiplication exercise4:532 900
Understanding multiplying vectors by scalars5:423 283
Example of vector magnitude from initial and terminal points5:492 590
Finding vector magnitude from components3:602 140
Example calcuating magnitude of vector from graph3:382 394
Equivalent vectors examples6:372 706
Example finding components of a vector3:183 609
Example comparing x components of vectors2:552 274



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