Establish the identity.cos(3x) = cos3 x - 3 sin2 x cos x
What will be an ideal response?
cos(3x) = cos(2x + x) = cos(2x) cos x - sin(2x) sin x = (cos2 x - sin2 x) cos x - 2 sin x cos x sin x = 
- sin2 x cos x - 2 sin2 x cos x = cos3 x - 3 sin2 x cos x.
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Express the vector in the form v = v = v1i + v2j + v3k.
if A is the point (-6, -7, 3) and B is the point (-1, -14, 6)
A. v = 5i - 7j + 3k B. v = 5i - 7j - 3k C. v = 5i + 7j - 3k D. v = 5i + 7j + 3k
Provide an appropriate response.Use a compass and straightedge to construct an angle of 45°.
What will be an ideal response?
When a company has core competencies that are different than the capabilities of competitors, these core competencies are also known as
A. intangible assets B. distinctive competencies C. visionary capabilities D. tangible assets
Solve for the variable.
x = 15
A. 3 B. 19 C. 60 D. 18