sin(405) = square root of 2 divided by 2 which is about 0.7071067812
The derivative of cos x is -sin x, the derivative of square root of x is 1/(2 root(x)). Applying the chain rule, the derivative of cos root(x) is -sin x times 1/(2 root(x)), or - sin x / (2 root x).
1.5
cos A=3/5 sin=square root of (1-cos2) sin=square root of (1-3/52) sin=square root of (1-9/25) sin=square root of (16/25) sin=4/5 csc=1/sin csc=1/(4/5) csc=5/4
1.5
one over the square root of 2 or 0.850903525
sin-30 = (-1) x 1/(square root of 2) -sin30 = -(1/square root of 2) They are equal
square root 3/2
1/square root 2
Do you mean sin(x)=sqrt(3)/2? IF so, look at at 30/60/90 triangle. We see the sin 60 degrees is square (root of 3)/2
sin(1,305) = sin(225) = -0.70711 (rounded) = 1/2 of the negative square root of 2.
square root of three over two