tqα =√3 ; α∈(π ; 3π/2).
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sinα -->?
cosα--> ?
ctqα --> ?
ctqα =1/tqα =1/√3.
1 + tq²α =1/cos²α ⇒ cosα= - 1/(√1+tq²α) (т.к. α∈(π ; 3π/2).
cosα= - 1/2 .
sinα =cosα*tqα = -√3/2.
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Verified answer
tqα =√3 ; α∈(π ; 3π/2).
--------------------------------
sinα -->?
cosα--> ?
ctqα --> ?
ctqα =1/tqα =1/√3.
1 + tq²α =1/cos²α ⇒ cosα= - 1/(√1+tq²α) (т.к. α∈(π ; 3π/2).
cosα= - 1/2 .
sinα =cosα*tqα = -√3/2.