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X
so
the Deviritive of sec inverse
let me write a question
show thats
d/dx
of sec(x) inverse
equals
1over lxl
mutliply the squre root of x^2 -1
how can we improve this
the final result !
I will start with sec
let y= sec-1(x)
let y= sec-1(x)
so
secy=x
becuse sec-1(x)=y it's clear that sec(y)=x
now I can conclude
I know that sec(y) equals 1/cos(y)
I don't know if it's clear to see
and equals X
now I can arrange the function
and I wil have
cos(y)
mulitiply X
=1 , and now I can start using the devirative
d/dx cos(y).x
d/dx cos(y).x
2 functions
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