Which expression is equivalent to cos(pi/12)cos(5pi/12)+sin(pi/12)sin (5pi/12)? Cos(-pi/3)
Sin(-pi/3)
Cos(pi/2)
Sin(pi/2)

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

answer: translate the circles so they share a common center point and dilate circle y by a scale factor of 3.

there is no graph so i cant sorry

step-by-step explanation: