cfvgbhdfgyh8452 cfvgbhdfgyh8452

16-03-2018
Mathematics

contestada

Use a sum or difference formula to find the exact value of the trigonometric function. sine startfraction 7 pi over 12 endfractionsin 7π 12

Respuesta :

calculista calculista

25-03-2018

we have that
sin (7π/12)=?

we know that
7π/12=(π/4+π/3)
and
sin(A+B)=sin(A)cos(B)+cos(A)sin(B)

then
sin(π/4+π/3)=sin(π/4)cos(π/3)+cos(π/4)sin(π/3)
sin(π/4+π/3)=(√2/2)(1/2)+(√2/2)(√3/2)-------> (√2/4)+(√6/4)---> (√2+√6)/4

the answer is (√2+√6)/4

Answer Link

Otras preguntas

The points (0,3) and (1,12) are solutions of an exponential function. What is the equation of the exponential function? Question 17 options: A) h(x) = 4(1∕3)x

2(2x−3)+4<6x+7−11 just need the answer for this !!!! helppp

find the ratio of shaded portions to unshaded portions in fig 8.1

Compare the central ideas of Nature and Society and Solitude. Which two ideas do the excerpts share? a. Solitude is important to a person’s process of self-dis

pls help i need will give braimlyest

Zelly works 10 hours a week at a food market for $9.50 an hour. She takes home $8.55 an hour after deductions. What is her rate for deductions?

What format is typically followed with a hypothesis

Whose work is responsible for the invention of the air bag? Scientist, Engineers or both?

3. How can you implement the Solid Waste Management in this community?

3) What did Carly's father make the kids promise? reaching dustin