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Concept Check Without using a calculator, decide whether
Chapter 3, Problem 45(choose chapter or problem)
QUESTION:
Concept Check Without using a calculator, decide whether each function value is positive or negative. (Hint: Consider the radian measures of the quadrantal angles, and remember that p 3.14.) cos 2
Questions & Answers
QUESTION:
Concept Check Without using a calculator, decide whether each function value is positive or negative. (Hint: Consider the radian measures of the quadrantal angles, and remember that p 3.14.) cos 2
ANSWER:Step 1 of 2
We have to determine whether the function value is positive or negative without using the calculator.
We know that,
And