Question

sin 23degree=

Answer 1

sin((23 pi)/180) exact answer is 0.390731128489273755062084588889094267618015167576432075747106...

Answer 2

no without using caculator

Answer 3

sin 23 degree is 23*pie/180?

Answer 4

sin(23 °) = cos(67 °) or sin(23 °) = (-e^(-23 ° i)+e^(23 ° i))/(2 i)

Answer 5

-e^(-23 degree i)+e^(23 degree i)/2 i ? what is that i cant understand .@gowtham89

Answer 6

i dont understand.only formula needed

Answer 7

@gowtham89 , that way is not very good and is very difficult...sry @dg2 i was eating lunch.
well so you need sin 23 ? isn't it sin 22.5 ? well 2 x 23 = 46 and we cannot find sin 46 by using the formula eighter so i think it would be sin 22.5.

Answer 8

and then 2x22.5 = 45 and we can find sin 45 !

Answer 9

i thought he wants the exact form @PFEH.1999

Answer 10

k.can u find out sin 27 degree

Answer 11

27 ? for sin 27 you need calculator again as u cannot find 27x2 = 54 or 27/2 = 13.5

Answer 12

for getting the perfect answer u can use this formula but its bit difficult as @PFEH.1999 said 3 sin(pi/20) cos^2(pi/20)-sin^3(pi/20)

Answer 13

yes @dg2 , u can use that formula for sin 22.5 - 80 - 120 - 15 or etc not 23 or 27 !

Answer 14

see i have the answer 1/4 srt(5-5)-sqrt(3-5)

Answer 15

i know the procedure to do,but i thought it has formula to find like tan a/2

Answer 16

formula to find it?i havn't seen.

Answer 17

sry @dg2 , i have to go...do you still have problems?

Answer 18

no.u carry on @PFEH.1999 .no problem.3q.bye

Answer 19

bye ;)