3 years ago

√3×sinx+cosx=0 tmf nghiệm

Mathematics

1 answer:

Crazy boy [7]3 years ago

7 0

Answer:

x= -30

Step-by-step explanation:

√3×sinx+cosx=0

√3sinx=-cosx

√3sinx/-cosx=1

-sinx/cosx=1/√3

-tanx=1/√3

(tan(180-30))=1/√3

tan(-30)=1/√3

Therefore, x= -30

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