Two thin lenses with focal lengths t and q and separated by a distance 
have their combined focal length given by the reciprocal of 
. Combine the fractions in the expression above and use the reciprocal of your result to find the combined focal length.
?
A. 
B. 
C. 
D. 
E. 
Answer: B
Mathematics
You might also like to view...
Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated axis.About the y-axis 
A. 15? B. 6? C. 9? D. 12?
Mathematics
Provide an appropriate response.Factor completely: 10x2 - 17x + 3
Fill in the blank(s) with the appropriate word(s).
Mathematics
Find the least common denominator for the fractions in the list.
, 
, 
A. 90x5 B. 18x2 C. 45x20 D. 30x5
Mathematics
Find functions f and g so that f ? g = H.H(x) = 
A. f(x) = 
; g(x) = 
B. g(x) = 
; f(x) = 
C. f(x) = 
; g(x) = 
D. f(x) = x - 3; g(x) = 
Mathematics