2.) f(x) = sin x + cos x maka nilai dari f'(π/2) adalah sin x
kartikaaa
2.f(x)= sin x + cos x sin x f(x)=(cos x + sin x) (sin x) + (sin x+ cos x)(cos x) sin²x f(x)=sinx²+sinx cosx+ sinx cosx + cos² sin²x f(π/2)= 1+ sin (π/2) cos (π/2) + sin (π/2) cos (π/2) sin(π/2)² f(π/2)=1+1.0+1.0 1 f(π/2)= 1 maaf klau slah
sin x
f(x)=(cos x + sin x) (sin x) + (sin x+ cos x)(cos x)
sin²x
f(x)=sinx²+sinx cosx+ sinx cosx + cos²
sin²x
f(π/2)= 1+ sin (π/2) cos (π/2) + sin (π/2) cos (π/2)
sin(π/2)²
f(π/2)=1+1.0+1.0
1
f(π/2)= 1
maaf klau slah