Two equations here, I need to simplify both of them but I'm not too sure:
(y^2+1)/(y^2+1) as well as (t^2-s^2)/(s+t)^2
There are a number of potential factors that can contribute to feeling like we are not thinking straight. These can include stress, lack of sleep, nutritional deficiency, illness, or simply being distracted or preoccupied with other things.
Sometimes it can be helpful to take a break and clear our minds before tackling a task that requires focus and attention. Additionally, practicing mindfulness and being present in the moment can help prevent our minds from wandering and making mistakes.
Yes, it is completely normal to have days where we feel like we are not functioning at our best. Our brains, like any other part of our body, can experience fatigue and need rest and rejuvenation.
Eating a balanced and nutritious diet, staying hydrated, and getting enough rest can all help improve cognitive function. Additionally, engaging in activities that stimulate the brain, such as puzzles or brain teasers, can also help improve focus and concentration.
If you are consistently experiencing difficulty with cognitive tasks or if these "off" days are significantly impacting your daily life, it may be a good idea to consult with a healthcare professional to rule out any underlying medical conditions.