Verify the identity.tan
= -cot x
What will be an ideal response?
tan 
= 
= 
= 
= -cot x.
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Divide, if possible. If not possible, write "not defined."
A. 8 B. 0 C. 1 D. Not defined
The first card is black and the second card is red.
Two cards are dealt without replacement from a well-shuffled deck of cards. Find the probability of each event.
Decide whether the graph of the equation opens up, down, to the left, or to the right; and whether it is wider, narrower, or the same shape as the graph of 
(or 
).x = 
y2 + 10y - 4
A. To the right; wider B. To the right; narrower C. To the left; narrower D. To the left; wider
Find the focus and the directrix of the parabola.y = x2 + 14x + 50
A. Focus: 
; directrix: y = 1
B. Focus: 
; directrix: y = 
C. Focus: 
; directrix: x = 1
D. Focus: (-7, 2); directrix: y = 0