Find the requested function value of ?.If sin ? = , find sec ?.

A.
B.
C.
D.


Answer: D

Mathematics

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Evaluate the integral. Give your answer in exact form.

A.  + ln(7 + 4)
B.  + ln 4
C.  + ln(2)
D.  + ln(7 + 4)

Mathematics

If the equation represents a hyperbola, find the center, foci, and asymptotes. If the equation represents an ellipse, find the center, vertices, and foci. If the equation represents a circle, find the center and radius. If the equation represents a parabola, find the focus and directrix. 4x2 + 9y2 + 72x - 36y + 324 = 0

A. C: (-9, 2); V: (-9, 5), (-9, -1); F: (-9, 4.2), (-9, -0.2) B. C: (-9, 2); V: (-6, 2), (-12, 2); F: (-6.8, 2), (-11.2, 2) C. C: (-9, 2); V: (-7, 2), (-11, 2); F: (-5.4, 2), (-12.6, 2) D. C: (-9,2); V: (-9, 4), (-9, 0); F: (-9, 5.6), (-9, -1.6)

Mathematics

Establish the identity. = 

What will be an ideal response?

Mathematics

Find the moment or center of mass of the wire, as indicated.Find the center of mass of a wire that lies along the semicircle y =  if the density of the wire is .

A.  = 0,  = 1
B.  =  = 
C.  = 0,  = 
D.  = 1,  = 1

Mathematics