Solve the problem.Use the fact that sin-1 x = x +
for |x| < 1 to find the series for cos-1 x.
A. 
- 
B. 
- x + 
C. 
- x - 
D. 
- x + 
Answer: C
Mathematics
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Find the equation for the plane tangent to the parametrized surface S at the point P.S is the cone r(r, ?) = r cos ?i + r sin ?j + 3rk; P = 
What will be an ideal response?
Mathematics
Write an equation to describe the variation. Use k for the constant of proportionality.z varies inversely as m
A. m = kz
B. z = 
C. m = 
D. z = 
Mathematics
Evaluate the sum using the given information.x1 = -2, x2 = 3, x3 = -1, and x4 = -3
A. -38 B. -25 C. 15 D. -31
Mathematics
A unit fraction (a fraction with a numerator of 1) is sometimes called an Egyptian fraction. Egyptians expressed their fractions as a sum of distinct (different) unit fractions. How might the Egyptians have written the fraction 
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics