Verify the identity.(sec x - tan x)(sec x + tan x) = 1
What will be an ideal response?
(sec x - tan x)(sec x + tan x) = sec2x - tan2x = 1
Mathematics
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Provide an appropriate response.The first-quadrant region bounded by y = 
, the x-axis, and the y-axis is revolved about the y-axis to form a solid. Explain how you could use elementary geometry formulas to verify the volume of the solid.
What will be an ideal response?
Mathematics
Use the quadratic formula or graphing methods to solve the inequality.8x2 < 8x + 8
A. x < 
? -0.618 or x > 
? 1.618
B. x < 
? -0.618
C. x > 
? 1.618
D. 
? -0.618 < x < 
? 1.618
Mathematics
Write interval notation for the graph.
A. (-?, -4] B. (-?, -4) C. [-4, ?) D. (-4, ?)
Mathematics
Find an equation of variation for the given situation.y varies inversely as x and y = 0.5 when x = 0.9
A. y = 
B. y = 
C. y = 
D. y = 0.56x
Mathematics