CreolaBudniewski290 CreolaBudniewski290

21-09-2014
Mathematics

contestada

How do you find the derivative of y=ln(cos(x))y=ln(cos(x)) ?

Respuesta :

Аноним Аноним

21-09-2014

[tex]y=ln(cosx)\\\\We\ know:\\(lnx)'=\frac{1}{x}\ and\ (cosx)'=-sinx\ and\ \{f[g(x)]\}'=f'[g(x)]\cdot g'(x)\\\\therefore:\\\\y'=\frac{1}{cosx}\cdot(-sinx)=-\frac{sinx}{cosx}=-tanx[/tex]

Answer Link

Otras preguntas

reduce the fraction 512/128 into the simplest form

eeeeeeeebrianeeeeeeeeeeeee

What would Hubble's constant be if we found one galaxy moving away at 30,000 km/s at a distance of 600 Mpc?

When their economic policies were opposed, the East India Company __________. a. paid higher wages to the farmers who chose to grow cash crops b. used force aga

See The Picture And Anwser

If the measure of arc EG is 90°, what is the measure of angle GBE?

Find the unknown side length. Give EXACT answer. Then tell if the triangle forms a Pythagorean triple.

Steve delivers Chinese and earns $8 an hour. He averages about $10 per hour in tips. About how much does he earn in a 35 hour week?

3. Which 3 Western European countries border the "Iron Curtain”? a. b. C.

pythagorean theorem round to the nearest tenth !!