Establish the identity.sec 4 x - tan 4 x = sec 2 x + tan 2 x
What will be an ideal response?
sec 4 x - tan 4 x = (sec 2 x + tan 2 x)(sec 2 x - tan 2 x) = (sec 2 x + tan 2 x)(1) = sec 2 x + tan 2 x.
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Determine whether there is sufficient information for solving a triangle, with the given combination of angles and sides, by the law of sines.b, A, and B
A. Yes B. No
Provide an appropriate response.Use a compass and straightedge to construct a triangle DEF such that ?DEF ? ?ABC, where triangle ABC is the one shown below.
What will be an ideal response?
Write the complex number in rectangular form using exact values if possible. Otherwise, round to one decimal place.3(cos 123° + i sin 123°)
A. 0.9 - 1.5i B. 2.5 - 1.6i C. -0.9 + 1.5i D. -1.6 + 2.5i
Match the story with the correct figure.Mark started out by walking up a hill for 5 minutes. For the next 5 minutes he walked down a steep hill to an elevation lower than his starting point. For the next 10 minutes he walked on level ground. For the next 10 minutes he walked uphill. Determine which graph of elevation above sea level versus time illustrates the story.
A. 
B. 
C.
D. 