Turguteren33rans
Answered


[tex] \frac{1 - \cos(x) }{ \sin(x) }[/tex]
nasil aşağıdaki ifadeye eşit oluyor? Biri sağlamasını yapabilir mi?
[tex] \tan( \frac{x}{2} ) [/tex]

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Sagot :

Damlarans

(1 - cos x) = 2sin² (x/2)

sin x = 2sin (x/2).cos (x/2)

(1 - cos x) / sinx = 2sin² (x/2) / 2sin (x/2).cos (x/2)

2sin (x/2)

(1 - cos x) / sinx = sin (x/2) / cos (x/2)

= tan (x/2)

tan x = sin x / cos x

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