Use Fundamental Identities and/or the Complementary Angle Theorem to find the exact value of the expression. Do not use a calculator.csc2 70° - tan2 20°
A. 0
B. -1
C. 1
D. 2
Answer: C
Mathematics
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Determine whether the following is always true or not always true. Given reasons for your answers.u × (v + w) = u × v + u × w
What will be an ideal response?
Mathematics
Find the real solutions of the equation by factoring.6x3 + 54x2 + 120x = 0
A. {-4, -5}
B. 
C. {0, -4, -5}
D. {0, 4, 5}
Mathematics
Evaluate the integral. 
Mathematics
Find the center and radius of the sphere.
A. center: (3, -6, -3); radius: 25 B. center: (-3, 6, 3); radius: 5 C. center: (3, -6, -3); radius: 25 D. center: (-3, -6, -3); radius: 5 E. center: (3, -6, -3); radius: 5
Mathematics