[tex] \frac{sin20 ^{0} + cos290 ^{0} }{2sin10^{0} * cos10 ^{0}} \\ [/tex]. Created by MonteTrix. algebra-ru

tex]...

MonteTrix @MonteTrix

July 2022 1 5 Report

[tex] \frac{sin20 ^{0} + cos290 ^{0} }{2sin10^{0} * cos10 ^{0}} \\ [/tex]

Answers & Comments

Luluput

Verified answer

$\frac{sin 20к+cos290к}{2sin10кcos10к} = \frac{sin 20к+cos(270к+20к)}{2sin10кcos10к} =\frac{sin 20к+sin20к}{sin 20к} = \frac{2sin 20к}{sin20к}=2$

$sin2 \alpha =2sin \alpha cos \alpha$
$cos(270к+ \alpha)=sin \alpha$

3 votes Thanks 3

uprostite vyrazhenie uslovie vo vlozhenii

Answer

MonteTrix August 2022 | 0 Ответы

tex]...

Answer

MonteTrix August 2022 | 0 Ответы

proizvedenie 3 go i 5 go chlenov vozrastayushej arifmeticheskoj progressii ravno 3

Answer

MonteTrix August 2022 | 0 Ответы

vychislite ploshad figury ogranichennoj liniyamibc4746f3a1d6d384ede718b20b1df7fd 27638

Answer

Answers & Comments

Verified answer

uprostite vyrazhenie uslovie vo vlozhenii

tex]...

proizvedenie 3 go i 5 go chlenov vozrastayushej arifmeticheskoj progressii ravno 3

tex]...

tex]...

zhmyrta kak pravilno razbit na slogi zh myrt a ili zh myr ta

opredelite zakonomernostccc903602b095c837cf4332b17ebb7d0 71811

tex]...

tex]...

vychislite ploshad figury ogranichennoj liniyamibc4746f3a1d6d384ede718b20b1df7fd 27638

рекомендуемые вопросы

Helpful Links

Helpful Social