Simplify, if possible, by combining like terms.-5a + 7a + 6a
A. 2a2 + 6a
B. 2a + 6
C. 8a3
D. 8a
Answer: D
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Solve the problem.Use the fact that tan x = x + 
+ 
+ 
+ . . . for |x| < 
to find the first four terms of the series for ln (cos x).
A. 1 + x2 + 
+ 
+ . . .
B. 
+ 
+ 
+ 
+ . . .
C. - 
D. - 
Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = y - ex - 2, y(2) = 2, dx = 0.5
A. y1 = -2.0945, y2 = -10.4330, y3 = -25.6523 B. y1 = -1.2945, y2 = -8.8330, y3 = -25.3323 C. y1 = -0.8945, y2 = -8.0330, y3 = -25.1723 D. y1 = -1.6945, y2 = -9.6330, y3 = -25.4923
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 3-2? 34
A. 
B. 6
C. -729
D. 9
Find an equation for the ellipse in the graph.
A. 
- 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1