You must buy a book by M.L.KHANNA for good practice. And if you are facing difficulty in solving the questions ensure that you know all the trigonometry formulas very well. You can write all formulas in a page and first solve questions by looking at them and after sometime you will come to learn all those formulas. PLEASE LIKE MY ANSWER IF YOU ARE SATISFIED BY IT. AND BEST OF LUCK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

you just have to practise ................

practise different kinds of problems and the formulas will automatically get into ur mind....

by remembering them u can study the higher concepts easily

memorise the basuc formulas...........!!!!!

hope it helps????