10 Replies
@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.no fancy methods pls ( ek hi class hui hai)
Use Cos C - Cos D in numerator and simplify
kuch khaas bana nahi
-2sin(15x/2)sin(x/2)
even if i try to cos(2*5x/2) and express in terms of sin i dont really get something meaningful
So I have done this ques but don't remember completely you need to multiply and divide it by something cos or sin
Try to figure that out
@hardcoreisdead
damn
got it
thanx
+solved @Abhi
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