Find the exact value. If the value of the function is not defined, write undefined.csc 4?
A. 1
B. 0
C. -1
D. Undefined
Answer: D
Mathematics
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = 
A. y = u1/8; u = 7x; 
= 
B. y = u8; u = 7x; 
= 
C. y = u1/8; u = 7x; 
= 
D. y = u1/8; u = 7x; 
= 
Mathematics
Find the exact value of the expression using the provided information.Find cos(s - t) given that cos s = - 
, with s in quadrant II, and 
with t in 
A. - 
B. 
C. - 
D. 
Mathematics
Calculate the direction of 
and the midpoint of line segment P1P2. P1(6, -8, -1) and P2(9, -12, -6)
A. 
i - 
j - 1
k; 
B. 
i - 
j - 
k; 
C. 
i - 
j - 
k; 
D. 
i - 
j - 1
k; 
Mathematics
Find fractional notation for the ratio. You need not simplify.In this rectangle, find the ratios of length to width and of width to length.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Mathematics