Suppose that cos(θ)=20/29 and 0≤θ≤π/2. Sketch a right triangle with an interior angle measure of θ radians. Since cos(θ)=20/29, you can write down the lengths of two sides of the right triangle.

Using your diagram from part (a), determine the exact value of sin(θ). Enter your answer as a fraction.
sin(θ)= 

Using your diagram from part (a), determine the exact value of tan(θ). Enter your answer as a fraction.
tan(θ)=

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step-by-step explanation:

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation:

where is the gragh

step-by-step explanation:

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