Solve the initial value problem.
= csc2 15? cot 15?, r
= 3
A. r = 
csc3 15? cot2 15? + 3
B. r = - 
tan2 15? + 
C. r = - 
cot2 15? + 
D. r = 
cot2 ? + 
Answer: C
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and 
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A. 0.
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C. 0.242442444...
D. 0.241241241...
Determine if the function f defined by the arrow diagram has an inverse. If it does, create an arrow diagram that defines the inverse. If not, explain why not.
A. Yes;
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Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.tan 55° - 
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