[tex]sin^{2}30\textdegree+cos^{2}45\textdegree =\frac{3}{4} [/tex]

Răspunsul a fost dat de: USER5714
26 Agustus 2025 matematica 5 minute
4.5
84 Vezi 84 comentarii 10 Distribui

Întrebare

Clasă: Education Materie: matematica

[tex]sin^{2}30\textdegree+cos^{2}45\textdegree =\frac{3}{4} [/tex]

Întrebare a fost pusă de:
84 Vezi 84 Răspunsuri

Răspuns (84)

Cel mai bun răspuns
(169)
sin 30 grade= 1/2

sin² 30 grade= (1/2)²= 1/4

cos 45 grade= √2/2

cos² 45 grade= (√2/2)²= 2/4

sin² 30 + cos² 45= 1/4 + 2/4= 3/4
Răspunsul a fost dat în data 26 Agustus 2025
(172)
sin 30= 1 supra 2,
sin pătrat 30= 1 supra 4.
cos 45= √2 supra 2=
cos pătrat de 45= √2² supra 2²= 2 supra 4
1 supra 4 + 2 supra 4= 3 supra 4, qed
Răspunsul a fost dat în data 26 Agustus 2025

Articole relevante

Can clearing the Sky Go app cache and data resolve error 1.12?

62 Vezi 62 comentarii

What steps should I take if I'm using a VPN and encountering Sky Go error 1.12?

79 Vezi 79 comentarii

Is Sky Go error 1.12 a server-side issue, and how can I check for outages?

74 Vezi 74 comentarii

How can I troubleshoot Sky Go error 1.12 related to my internet connection?

75 Vezi 75 comentarii

How did the Treaty of Paris (1763) affect Florida? Check all that apply. A Florida was split into West Florida and East Florida. B The capital of East Florida was moved to Pensacola.C Most of the Spanish population left Florida. D Great Britain lost territory to France. E Governor Grant offered free land grants for settlement. F Spain surrendered its territory east of the Mississippi River to Great Britain. PLEASE HELP 50 POINTS

160 Vezi 433 comentarii

apakah gerak fototropisme? sebutkan macam macamnya!

51 Vezi 51 comentarii

ma gandes la un numar il inpart la 7 si imi da 8 al ce numar mam gandit​

72 Vezi 72 comentarii

2+(x+y)=(2+x)+y is and example of which algebraic property?

A)Distributive property
B)Associative property of addition
C)Commutative property of addition
D)Symmetric property

160 Vezi 207 comentarii

Arti bank sampah asri

27 Vezi 27 comentarii

5. Determinați mulțimile:
A = {x|x€ N şi 3 |x};
C = {x|x € N şi 5 (3x - 1)};
B = {x rc N si 41 (2x-1)};
D= {x|x e N şi 4(x + 2)}.
Va rog !!

160 Vezi 169 comentarii

Please provide the propagation history of the following domains:
air-conditioning-companies-in-my-area-4-mb3.site, air-conditioning-companies-in-my-area-5-mb3.site, air-conditioning-companies-in-my-area-mb2.site, air-conditioning-companies-in-my-area-mb3.site, air-conditioning-companies-kst.site, air-conditioning-companies-near-me.site, air-conditioning-companies-us-4-mb6.site, air-conditioning-companies-us-mb6.site, air-conditioning-companies-us.site, air-conditioning-companies-ww-ihorfb.si

160 Vezi 500 comentarii

What do reviews say about the portrayal of Light Yagami as a protagonist?

73 Vezi 73 comentarii

3 persamaan laba-laba dan serangga

35 Vezi 35 comentarii

Coucou Aidez moi à chercher dès énigmes facile de 6eme ( énigmes de maths)

74 Vezi 74 comentarii

comment rediger un texte argumentatif parfaitement?!je maîtrise la rédaction du corps du sujet,par contre la thése et l illustration non..

138 Vezi 138 comentarii