Suppose ga 66 cos 11a a What is the argument of the cosine

Suppose g(a) = 6.6 cos (1.1a). a. What is the argument of the cosine function? (Enter an expression) b. The argument of the cosine function represents what quantity? angle measure (in radians) vertical distance above the horizontal diameter (measured un radius lengths) radius length horizontal distance to the right of the vertical diameter (measured in radius length) n8umber of seconds elapsed c. For the value of cosine to vary through a complete cycle of its outputs, the value of the argument must increase from 0 to d. For the value of cosine to vary through a complete cycle of its outputs of g must increase from 0 to e. What is the period of the function g?

Solution

g(a) = 6.6cos(1.1a)

a) argument of g(a) = 1.1a

b) argument of g(a) represents angle in radians

c) for a complet cycle argument of g(a) varies from 0 to 2pi

d) input of a varies from 0 to: 0.909pi or 20pi/11

1.1a = 2pi ; a= 2pi/1.1 = 0.909pi or 20pi/11

e) period = 2pi/1.1 = 0.909pi or 20pi/11