IndexTrig substitutions in integration 272
Trigonometric equations 191
Trigonometric functions 175
Trigonometric ratios 174
Trivial solution 397
Turning point 294
Undetermined coefficients 469
Unit matrix 381
Unit vector 331
Va r i a b l e s 4 0
Variables separable 454
Variance 110
Vector 318
Vector function 339
Vector product 336
Volume of revolution 308
Vulgar fraction 12Work done 334Zero matrix 381
Zero vector 319
Zeros 6, 44