netoisbeautiful6887 netoisbeautiful6887
  • 04-06-2018
  • Mathematics
contestada

Find the exact value of sin(11pi/12)cos(pi/6)-cos(11pi/12)sin(pi/6)

Respuesta :

Аноним Аноним
  • 04-06-2018
We use the identity  sin (A - B) = sin A cos B - cos B sin A

so the above  = sin (11pi/12 -  pi/6) = sin 3pi/4 =  1 / sqrt2 answer
Answer Link

Otras preguntas

Who wrote the sonnet, “The New Colossus,” which is engraved on the pedestal of the Statue of Liberty?
The song “America” by Neil Diamond conveys a positive message about what often contentious issue?
What iconic July 4th edible was nicknamed by sports cartoonist Tad Dorgan? a. hot dog b. popsicle c. pop
What iconic July 4th edible was nicknamed by sports cartoonist Tad Dorgan? a. hot dog b. popsicle c. pop
Where does the Liberty Bell hang?
what is the dot in i called?
what is database of computer ?
The last new star was added to the American flag in which year?
How many representatives are there in the House of Representatives?
This haunting and eloquent military tune originated as a signal to mark the end of the day, and is used today at funerals, wreath-laying services, and memorial