dontaviangreer2673 dontaviangreer2673

14-09-2022
Mathematics

contestada

Use a double-angle identity to find the exact value of sin 120° .

Respuesta :

Medunno13 Medunno13

14-09-2022

Answer:

[tex]\frac{\sqrt{3}}{2}[/tex]

Step-by-step explanation:

[tex]\sin 2x=2\sin x \cos x \\ \\ \sin 120^{\circ}=2\sin 60^{\circ} \cos 60^{\circ} \\ \\ =2(\sqrt{3}/2)(1/2) \\ \\ =\frac{\sqrt{3}}{2}[/tex]

Answer Link

Otras preguntas

Last year I had 37 students in my Pre-Algebra classes. This year I have 22. What is the percent decease in the amount of students I have this year?

Suppose that the given statement is true. If Mia goes to the mall, then Justin likes pretzels. Which statement must also be true?

Name a blood disease that shows too many red blood cells

___ CH3CH2OH + ___O2 ___CO2 + ___H2O

If Helium-4 were to fuse with Nitrogen-14 what would be the resulting element?

What does it mean to think and communice with clarity and share an example

What artist painted this pic?

Write an inequality and solve: Kerry is playing a video game. She cannot take more than 100 Hit Points of damage and continue playing. If she has already lost 1

Need a lil help in this lol help me

North Asia is located SOUTH OF East Asia True or false