Answers PrecalculusSolving Trigonometric Equations

Solving Trigonometric Equations — Cumulative exam Answers

25 verified answers4 views

What is the amplitude of the cosine function corresponding to the secant function graphed below?

–2

–1

What is the value of cos(tan-1(0))?

–1

StartFraction pi Over 2 EndFraction

Review the proof of cos(A - B) = cosAcosB + sinAsinB.Step 1: Step 2: Step 3: Step 4: Step 5:Step 6:Step 7:

1 and 1

2 and 1

(cosAcosB)2(sinAsinB)2 and (cos2(A – B))((sin2(A – B))

(cos2A + sin2A)(cos2B + sin2B) and (cos2(A – B))(sin2(A – B))

Which pair of equations below is a result of constructing the altitude, h, in ?

sine A = StartFraction h over c EndFraction sine C = StartFraction h over a EndFraction

sine A = StartFraction h over c EndFraction sine B = StartFraction b over c EndFraction

sine A = StartFraction b over c EndFraction sine C = StartFraction b over a EndFraction

sine C = StartFraction h over a EndFraction sine B = StartFraction b over a EndFraction

Which expression is equivalent to ?

tan(x)

–tan(x)

StartFraction 1 Over cosine (x) EndFraction

Negative StartFraction 1 Over cosine (x) EndFraction

Did you find these answers helpful?

More from this Course