devb99
devb99
29-03-2018
Mathematics
contestada
can someone help me out with number 2?
Respuesta :
Banabanana
Banabanana
29-03-2018
[tex]\sin255^o=\sin(300^o-45^o)=\sin300^o\cos45^o-\cos300^o\sin45^o= \\\\=- \frac{ \sqrt{3} }{2}\cdot \frac{ \sqrt{2} }{2}- \frac{1}{2} \cdot \frac{ \sqrt{2} }{2}=- \frac{ \sqrt{6} }{4} - \frac{ \sqrt{2} }{4}= -\frac{ \sqrt{6}+\sqrt{2} }{4}[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 53+ )
Otras preguntas
Can physical weathering cause snow and pressure
The high unemployment rate among the disabled may be a result of ____________. medicalization obesity stigmatization all of the above
Read, look at the image, and choose the correct option. Two dancers, the woman wears a red dress A El vestido es rojo. B El pantalón es verde. C La sanda
Social movements are: disruptive and chaotic challenges to the government ineffective mass movements the collective action of individuals working together in an
3. Most animals and plants reproduce sexually. This means that DNA is passed down to new organisms from two parental organisms Which of the following is a key a
What was one of the major student organizations engaged in organizing protests and demonstrations against the Vietnam War? Committee for American Democracy Free
a 230-newton box rests on a plank 5 meters long. One end is 1.2 meters higher than the other end. Find the components of the force the box exerts
Select the correct answer Diane wants to maintain a record of percent change in sales from the year 2000 to the present year. She enters the values of percent c
A and B are complementary. If B = 26°, what is the measure of A? 1) 26° 2) 64° 3) 154° 4) 74°
What are the reasons for change in season?
