Use the fundamental identities to simplify the expression.
- tan x
A. tan x
B. csc x
C. tan2 x
D. cot x
Answer: D
Mathematics
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Simplify the radical expression.
A. 7 B. -49 C. -7 D. not a real number
Mathematics
Write the expression in simplest form. If a radical appears in the denominator, rationalize the denominator.
A. 7k3q4
B. 7q4
C. 7k3q4
D. 7k7q8
Mathematics
Rewrite the following as a product of trigonometric functions.sin 13° - sin 44°
A. 2 cos 28.5° cos(-15.5°) B. 2 cos 28.5° sin(-15.5°) C. 2 sin 28.5° sin(-15.5°) D. 2 sin 28.5° cos(-15.5°)
Mathematics
Find the vertex and axis of symmetry of the parabola.y = 8.8 - 1.2x + 0.2x2
A. (-3, 7); x = 3 B. (0, 0); x = 3 C. (3, -7); x = 3 D. (3, 7); x = 3
Mathematics