cot theta = 2tan 7and 1/2 ÷1-tan square 7 and 1/2 then sin3theta=
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hey hi sreeja
I think your from Narayanan group of schools even I from that.in the last of the book you may find key.you can refer that and if you have any problem with it you can ask your teacher.
sorry IAM not able to answer your question
sreeja9925:
it's okay
kk
which class are you
9 or 10
9th
kk
which state
hmm
which state
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