angelaalien13
angelaalien13
28-12-2017
Mathematics
contestada
7) WILL MARK BRAINLIEST + 10 POINTS :)
Respuesta :
tynollette
tynollette
28-12-2017
use the half angle identity: cos(A/2)=+/- √[(1+cosA)/2]
π/12 is half of π/6, and cosπ/6=√3/2, so
cons(π/12)=√[(1+√3/2)/2]=(1/2)√(2+√3)
C is the answer.
Answer Link
VER TODAS LAS RESPUESTAS ( 72+ )
Otras preguntas
Choose the correct citation for the following information. You may refer to the "Research Papers and Essays: Formatting and Citing Sources" document as you comp
A straight line through the point A( 3, 4 ) is such that its intercept between the axes is bisected at . Its equation isA) x + y = 7B) 3x - 4y + 7 = 0C) 4x + 3y
7) It takes 3 painters 6 days to complete a طفل job. How many days would many days it take 2 panters to complete the same job?
what often narrate events that occur outside the main action of the play
Joseph wants to factorise the following algebraic expression
what is the comparison between Adam and Eve by Mark Twain
Consider an LEO satellite system orbiting 500 km above the earth. Assume that the signal follows a free-space path-loss model with no multipath fading or shadow
A 20 kg cart accelerates at 0.5 m/s². If there is a 45 N frictional force, determine: 1. The net force acting on the cart 2. The applied force acting on the c
Wearever Sash Company provides a car for the use of its salesmen. They wish to purchase bodily injury and property damage insurance in the amount of 100/300/25.
Which of the following are situations where other than full and open competition may be justified? A: National security B: Sole source supply C: Urgency D: All
