probability help (1 Viewer)

[stressedadfff]

hi guys i solved the equation and got 2sin(1/2) but dont get why the answers say 0.99... when i got pi/3?? if it radian mode
im really confsued when to use radian and when not


for part b plssss

 

[cossine]

For calculus radians are should always be used.

Otherwise sin x d/dx = pi/180 cos x (using degrees)

not

sin x d/dx = cos x.

So in this question you need reverse chain rule and need to know that integral cos x = sin x + C.

 

[specificagent1]

whats the answer?

 

[stressedadfff]

whats the answer?

0.995....