1)   EMSolution Trigonometry Equations short 3.0
19292 trigonometric equations from basic to advanced with fully explained solutions, related math theory and easy-to-use test preparation options

 2)   EMSolution_Algebra_Equations 2.0
37988 algebraic equations from basic to advanced. Fully explained step by step solutions. Related math concepts. Authoring options to develop didactic materials, variant tests and lesson plans

 3)   EMSolution Algebra
70698 of fully explained algebraic solutions. Related math concepts. Formulas proofs. Authoring options to develop didactic materials, variant tests and lesson plans

 4)   EMSolution Hyperbolic short 3.0
41087 hyperbolic problems from basic to advanced with fully explained solutions, related math theory and easy-to-use test preparation options