Calculus - deivative of modulus fns

1

@nishant sir pls help

62

at x = 2pi/3, sin x is positive while cos x is negative

so the given functioni is same as -cos x + sin x

its derivative is sin x + cos x

Substitute x=2pi/3 to get 1/2-âˆš3/2

1

sir , can we use chain rule here

mod(cosx)/cosx * (-sinx) +mod(sinx)/sinx *cosx if the value of x is not mentioned

62

yes you can but here the two functions will be modulus and sin or modulus and cos

derivative of modulus function is the signum function (except at zero)

1

thank u sir .and aapka chatbox dekhiye please.

deivative of modulus fns