The Student Room Group
Uni students - Complete our survey >>
Uni students - Complete our survey >>
Uni students - Complete our survey >>

This discussion is now closed.

Check out other Related discussions

C3 Differentiation help (trig)

differentiate y=x2−sinxcosx2y = \frac{x}{2} - \frac{sin x cos x}{2}

my working:

dydx=12\frac{dy}{dx} = \frac{1}{2} now what comes next? I differentiated x2\frac{x}{2}, but how do i differentiate −sinxcosx2- \frac{sin x cos x}{2} this bit??

I can differentiate sinxconxsin x con x but how do i differentiate it when it's sinxcosx2\frac{sin x cos x}{2}

thanks in advance
x/2 - sinxcosx/2 = x-sinxcosx/2
Reply 2
Avatar for Saunterer
Saunterer
4
Differentiating (sin(x)cos(x)/2) gives (cos^2(x)/2) - (sin^2(x)/2)
I'm so stupid lol
thanks both of you :smile: i see it now

Related discussions

Latest

Trending

Trending

Articles for you