MATH110/April 2017/Question 11 (b)
Fragment of a discussion from User talk:AiliShao
It would be great, if you recall from part (a) that c lies on (0,pi/2) :)
HyunjuKwon (talk)
I made some changes... but not sure about whether I need to further explain why \sin x is positive on this interval.
Thanks, Aili. No you don't need to explain further, because they learn about trigonometric function in the class.
HyunjuKwon (talk)