samsharon2001 samsharon2001
  • 04-08-2016
  • Mathematics
contestada

Given that cos 160= -q, express each of the following in terms of q:

a) cos 20
b) sin 160
c) tan(-20)
d) cos 70

Respuesta :

caylus
caylus caylus
  • 04-08-2016
Hello,

cos 160°=-q

cos 20°=-cos 160°=q

sin 20°=√(1-q²)=sin 160°

tan -20°=tan 160=√(1-q²)/-q

cos 70°=sin 20°=√(1-q²)
Answer Link

Otras preguntas

Why was is difficult for the Arab people to form one nation?
If 8 men can chop down 28 trees in one day, how many trees can 20 men chop down in one day?
How many atoms are in 0.750 moles of zinc?
Determine whether the sequence coverage or diverges. If it converges, give the limit. 48, 8, 4/3, 2/9, ...
If Walt can paint 25 feet of fence in an hour, and Joe can paint 35 feet in an hour, how many minutes will it take them to paint a 150-foot fence, if they work
What is biogeography and what does it provide?
The length of a diagonal of a cube with edge length 25cm
Can somoene help me with this question??How might the history of the U.S. have been different if the original thirteen states had been guaranteed a perpetual ma
which seismic wave moves through earth at the fastest speed?
which seismic wave moves through earth at the fastest speed?