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McGraw Hill Glencoe Algebra 2, 2012

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McGraw Hill Glencoe Algebra 2, 2012 View details

2. Verifying Trigonometric Identities

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Exercise 64 Page 885

Consider using the Reciprocal Identity cot θ = 1tan θ.

1/2

Practice makes perfect

We want to find the exact value of tan θ given that cot θ = 2. To do so, we will use one of the Reciprocal Identities. cot θ = 1/tan θ, tan θ ≠ 0 Let's do it!

cot θ = 2

cot θ= 1/tan θ

1/tan θ = 2

LHS * tan θ=RHS* tan θ

1=2 tan θ

.LHS /2.=.RHS /2.

1/2=tan θ

Rearrange equation

tan θ=1/2

Subchapter links

Check Your Understanding p.882

Practice and Problem Solving p.882-884

H.O.T. Problems p.884

Standardized Test Practice p.885

Spiral Review p.885

Skills Review p.885