Odpowiedź:
[tex]\sqrt{tg\alpha}+\sqrt{ctg\alpha}=\sqrt5[/tex]
Szczegółowe wyjaśnienie:
[tex]\sqrt{tg\alpha}+\sqrt{ctg\alpha}=x\ \ \ |()^2\\\\tg\alpha+2\sqrt{tg\alpha}\cdot\sqrt{ctg\alpha}+ctg\alpha=x^2\\\\tg\alpha+ctg\alpha+2\sqrt{tg\alpha\cdot ctg\alpha}=x^2\\\\3+2\sqrt{1}=x^2\\\\3+2\cdot1=x^2\\\\x^2=3+2\\\\x^2=5\\\\(\alpha\in(0^o;90^o))\\\\x=\sqrt{5}[/tex]
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Verified answer
Odpowiedź:
[tex]\sqrt{tg\alpha}+\sqrt{ctg\alpha}=\sqrt5[/tex]
Szczegółowe wyjaśnienie:
[tex]\sqrt{tg\alpha}+\sqrt{ctg\alpha}=x\ \ \ |()^2\\\\tg\alpha+2\sqrt{tg\alpha}\cdot\sqrt{ctg\alpha}+ctg\alpha=x^2\\\\tg\alpha+ctg\alpha+2\sqrt{tg\alpha\cdot ctg\alpha}=x^2\\\\3+2\sqrt{1}=x^2\\\\3+2\cdot1=x^2\\\\x^2=3+2\\\\x^2=5\\\\(\alpha\in(0^o;90^o))\\\\x=\sqrt{5}[/tex]