Question

trick to learn dimensional formulas ​

Answer 1

Answer:

There is no trick to learn Dimensional Formula. But you need to learn formula of quantity. then u can made easily dimensions formula ..

Answer 2

Answer:

Convert them from units.

Explanation:

If you learn the units, it's just easy conversion of them from units, however if you don't, not a problem either. If you practise more and more questions on them  you can easily learn them on your own, and if you derive them each time it will be faster than you think.