How to do trigonometry
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by studying maths if you don't do it you never ever understand trigonometry
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From my side i will suggest you to just memorise tge table first....and remember identities (its very simple)..If you are facing problems in proving identities questions......then..
1. if 1 is there in the ques replace it with the identity
ex. cos theta +sin theta-1/cos theta +sin theta +1.
replace 1 with sin²theta + cos²theta ...take common... you will get your ans...
2. If the resultant contains sin or cos...cahge everything in sin cos.
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