A function is given by f (x) = 3x2 ? x . Find
(a) f (?4)
(b) f (x + a) .
(a) 52
(b) 3x2 + 6xa + 3a2 ? x ? a
Mathematics
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Solve using Cramer's rule.
A. (3, 8) B. (-3, -8) C. (-8, 3) D. (8, 3)
Mathematics
Write the equation in terms of a rotated x'y'-system using ?, the angle of rotation. Write the equation involving x' and y' in standard form.xy +16 = 0; ? = 45°
A. 
+ 
= 1
B. 
- 
= 1
C. y'2 = -32x'
D. 
+ 
= 1
Mathematics
Find an equation for the indicated ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the equation.
+ 3 = 8
A. 5
B. 
C. 25
D. 1
Mathematics