Solve the problem.What is the y-intercept of y = cos x?
A. 1
B. 
C. 0
D. ?
Answer: A
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Find the equation for the plane tangent to the parametrized surface S at the point P.S is the cylinder r(?, z) = 10 cos2 ?i + 5 sin 2?j + zk; P is the point corresponding to 
.
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.Is there an identity element for the operation of subtraction over the set of integers? Support your claim with an example.
What will be an ideal response?
Write the number in trigonometric form. Let 0° ? ? < 360°.1 - i
A. 
(cos 225° + i sin 225°)
B. 
(cos 45° + i sin 45°)
C. 2(cos 315° + i sin 315°)
D. 
(cos 315° + i sin 315°)
Use the composition cancellation equations to decide whether or not the functions are inverses of each other.f(x) = (x - 2)2, x ? 2 and g(x) = 
A. Yes B. No