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

Which length is equivalent to 12 yards
Cameron's book log shows that he read a total of 4 1/4 hours last month. How many minutes is that?
What is the freezing point of a solution containing 4.78 grams naphthalene (molar mass = 128.2 g/mol) dissolved in 32.0 grams paradichlorobenzene?
What is the freezing point of a solution prepared by dissolving 50.0g of glycerin in 200g of ethanol?
What values were typical of the victorian era?
Which of the following best describes the expression 3x+2y+8z? A.The product of three sums;there are three terms. B.The sum of three products;there are three te
How many languages are there in the world?
What is an instrumental suite?
Find the volume of the solid whose base is the circle x^2+y^2=64 and the cross sections perpendicular to the x-axis are triangles whose height and base are equa
what two types of waves are used to determine the epicenter of earthquakes