sin x = √5/5 maka nilai cotan (π/2+x)= ..... Mohon bantuanya :)

cot (90+x) = -tan x

sin x = √5/5 (de/mi)
samping = 2√5


Maka,
cot (90+x) = -√5/2√5
cot (90+x) = -1/2

Sin x = akar lima dibagi lima
Sin x= y:r
y.=akar 5
r= 5
Cari x(s.pada/depan))= akar lima kuadrat - lima kuadrat hasilnya nanti 2 akar lima
Cot(180:2 + x) =- tg x
Cot (90+ x) = - y: x
Tg x = akar lima dibagi 2 akar lima hasilnya 1/2
Jd cot(90+x)= - tg x
=-1/2