Solve the problem.Find the tangent to y = cos x at x = 
.
A. y = - x - 
B. y = - x + 
C. y = 1
D. y = x + 
Answer: B
Mathematics
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Use a calculator to find the function value. Give your answer rounded to seven decimal places, if necessary.sin 304°53'
A. -0.8203183 B. -0.8103183 C. -0.8303183 D. -0.8213183
Mathematics
Solve the equation.
- 
= 
A. {21} B. {7} C. {-7} D. ?
Mathematics
Use the given graph to find the x-intercepts.
A. -5, -1 B. 1, 5 C. -1, 5 D. -5, 1
Mathematics
The function f is one-to-one. Find its inverse.f(x) = 
A. f-1(x) = (x - 1)2
B. f-1(x) = x2 + 1, x ? 0
C. f-1(x) = x2 - 1, x ? 0
D. f-1(x) = 
Mathematics