1. practice, practice & more practice
2. review errors
3. master the key concepts
do not try to memorise the processes.
4. understand your doubts.
5. create a distraction free study environment
6. create a mathematical dictionary
7. apply maths to real world problems.
the simplified form is
we want to simplify the expression,
let us change the middle bar to a normal division sign to obtain,
we multiply the first fraction by the reciprocal of the second fraction to obtain,
we factor to obtain,
we cancel the common factors to get,
we simplify to get,
the correct answer is b