![Princeton Review mentions both half-life equations in their G-Chem book. Do I need to know both for the MCAT or am I good to just memorize the bottom one? Because TPR says Princeton Review mentions both half-life equations in their G-Chem book. Do I need to know both for the MCAT or am I good to just memorize the bottom one? Because TPR says](https://preview.redd.it/et3kf2kerb981.png?auto=webp&s=827fe756ab8292a63e8461280bfab54217c74a6b)
Princeton Review mentions both half-life equations in their G-Chem book. Do I need to know both for the MCAT or am I good to just memorize the bottom one? Because TPR says
![Do we actually need to know this radioactive decay equation? If so, what do each of the variables stand for? : r/Mcat Do we actually need to know this radioactive decay equation? If so, what do each of the variables stand for? : r/Mcat](https://preview.redd.it/do-we-actually-need-to-know-this-radioactive-decay-equation-v0-5sct333fosd91.png?auto=webp&s=56226bd6612eaf748e1468c4e4b02901286493a4)
Do we actually need to know this radioactive decay equation? If so, what do each of the variables stand for? : r/Mcat
![Radioactive Decay formula: Radioactive Half Life = 0.693 / Radioactive Decay Constant | Physics topics, Science themes, Calculus Radioactive Decay formula: Radioactive Half Life = 0.693 / Radioactive Decay Constant | Physics topics, Science themes, Calculus](https://i.pinimg.com/736x/94/f7/4e/94f74ee27559100c5e86f5fef080f3e4.jpg)