чи можлива рівність :1) sin a =2/52) cos a = корінь 23)sin a =корінь 5 - корінь 3. Created by Hhfugb. algebra-ru

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52) cos a = корінь 23)sin a =корінь 5

Krohotun41k

$\displaystyle\bf\\-1\leq Sin\alpha \leq 1\\\\\\1)\\\\Sin\alpha =\frac{2}{5}$

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$\displaystyle\bf\\-1\leq Cos\alpha \leq 1\\\\2)\\\\Cos\alpha =\sqrt{2} \\\\\\\sqrt{2} >1$

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$\displaystyle\bf\\3)\\\\Sin\alpha =\sqrt{5} -\sqrt{3} \\\\\sqrt{5} \approx2,24 \ \ ; \ \ \sqrt{3} \approx1,73\\\\\\\sqrt{5} -\sqrt{3} \approx2,24-1,73\approx0,51$

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Krohotun41k 3 теж більш за все ні

Krohotun41k ні, все таки може

Krohotun41k перше єдине вірне

kristinatehman545 3 может

doniyorbekkhudayarov атол

Universalka

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Объяснение:

2 точно ні, оскільки корінь з 2 більше 1. а косинус може дорівнювати [-1;1]

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Verified answer

LISTENING COMPREHENSION (the 2nd term).Variant 1. Task 1. Listen to the conversation and complete the sentences. 1. One of two men saw

!!! Rewrite sentences using participles. !!! 1. Since I was happy with my results, I decided to go out and celebrate. 2. I stayed at

Task 2. Rewrite sentences using participles. 1. I went round to see her. I was hoping for a reconciliation. 2. Peter was abandoned by

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prochitajte u vidilenih slovah poznachte sufiksina ridnu zemlyu divnim sportom lig

obchislit 1cos 30 tg 60ctg4527cos v kvadrati alfa 7sin v kvadrati alfa3

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an_2__ making a _3__ or a_4_painting pictures. _5_ artists do it for their own satisfaction and pleasure, but 6 artists have to make