Trigometri
sin x = a dan 0 ≤ x ≤ π/2 maka x di kuadran I
*
sin x = a
cos x = √(1 - sin² x)= √(1 -a²)
tan x = sin x/ cos x
tan x = (a) / √(1 - a²)
atau
tan x = a √(1 - a²) / (1 - a²)
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Verified answer
Trigometri
sin x = a dan 0 ≤ x ≤ π/2 maka x di kuadran I
*
sin x = a
cos x = √(1 - sin² x)= √(1 -a²)
*
tan x = sin x/ cos x
tan x = (a) / √(1 - a²)
atau
tan x = a √(1 - a²) / (1 - a²)