1. Suppose a represents a radian angle measure and cos(a)=−0.5. What is the numerical value of sec(a)? sec(a)= 2. Suppose b represents a radian angle measure and sin(b)=0.81. What is the numerical value of csc(b)? csc(b)= 3. Suppose c represents a radian angle measure and tan(c)=−0.25. What is the numerical value of cot(c)? cot(c)=

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A: topic - application of trigonometry tanθ=oppositeadjacent

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