I know that practise makes man perfect. But Im confused about the formulas in trigonometry which formula should i use. Ther are many formulas which is too applicable in the sum.

Can u plz suggest me some tips to master trigonometry

Hello student,
thew question you’ve raised is a very common problem among students, but you yourself know the solution. ALso, rather than skipping from books to books without completing the topic, one should at first consolidate his/her fundamentals and basics about the topic and then escalate towards attempting questions from other banks.

As for leaning the identities is concerned, write the identities’ LHS on an A4 sheet and get them xeroxed.(around 8-10). Then daily write the answer RHS before attempting the questions which will hardly take 5 minutes. At first, it’ll be frustrating where you can use the book for help. Gradually, after 4-5 days, all the identities will be on your tips.