Question

SENX=1/2 e que no e x 1*quadrante calcule ctgx

Answer 1

Ola Ellim

sen(x) = 1/2

sen²(x) + cos²(x) = 1

1/4 + cos²(x) = 4/4

cos²(x) = 4/4 - 1/4

cos²(x) = 3/4

cos(x) = √3/2 

cotg(x) = cos(x)/sen(x) = (√3/2)/(1/2) = √3

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