Q. If cos(θ)=178 and 0∘<θ<90∘, what is sec(θ)? Write your answer in simplified, rationalized form. sec(θ)= ______
Identify Relation: Identify the relation between cos(θ) and sec(θ).sec(θ) is the reciprocal of cos(θ).sec(θ)=cos(θ)1
Reciprocal Relation: We know:sec(θ)=cos(θ)1cos(θ)=178Identify the equation of sec(θ) after substituting 178 for cos(θ).sec(θ)=cos(θ)1sec(θ)=(178)1
Substitute Cosine:sec(θ)=1/(8/17)Find the value of sec(θ).sec(θ)=1/(8/17)sec(θ)=1×(17/8)sec(θ)=17/8
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