How do I get sin(3/5)?

Question

I know that there are a few ways to evaluate trig stuff
Like using the special trianges and looking at the graph
But what about other x's that don't include x=PIE/4, PIE/6, PIE/3 or their multiples?

I want to know how to do without a calculator

Answer 1

you will have to use the power series
x-x^3/3! + x^5/5! - x^7/7! ....

Answer 2

A is in II quadrant so sin is + and cos and tan are - B is in III quadrant so the two sin and cos are - and tan is + sinA = 3/5 cosA = sqrt[a million-sin^2(A)] = sqrt[a million-9/25] = sqrt[sixteen/25] = -4/5 sinB = -5/13 cosB = sqrt[a million - 25/169] = sqrt[one hundred forty four/169] = -12/13 tanA = sinA/cosA = (3/5) /(-4/5) = -3/4 tanB = sinB/cosB = (-5/13) /(-12/13) = 5/12 sinA = 3/5, cosA = -4/5, tanA = -3/4 sinB = -5/13, cosB = -12/13, tanB = 5/12 a million) sin(A+B) = sinAcosB +cosAsinB=(3/5)(-12/13)+(-4/5)(-5/13) sin(A+B) = -36/sixty 5 + 20/sixty 5 = -sixteen/sixty 5 cos(A+B) = cosAcosB-sinAsinB =(-4/5)(-12/13)- (3/5)(-5/13) cos(A+B) = 40 8/sixty 5 + 15/sixty 5 = sixty 3/sixty 5 tan(A+B)=(tanA+ tanB) /(a million- tanAtanB) tan(A+B) = (-3/4 + 5/12)/(a million - (-3/4)(5/12)) = -(a million/3)/(a million + 5/sixteen) tan(A+B) = -a million/3 /(21/sixteen) = -sixteen/sixty 3

Answer 3

From a scientific calculator sin(3/5 )=0.5646

Answer 4

sin .6 = .01 if you are talking degrees

sin .6 = .564 if you are talking radians

Answer 5

It is PI, not PIE.

For the question, how about using your calculator? :)
I do not think that you can get sin 0.6 using graphs.