Find the exact solution to the equation without a calculator.tan-1 (tan x) = - 
A. - 
B. 0
C. 
D. - 
Answer: A
Mathematics
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Obtain the Cartesian equation of the curve by eliminating the parameter.x = 3 sec t , y = 8 tan t
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics
Find the directrices of the ellipse.x2 + 144y2 = 144
A. y = ± 
B. y = ± 
C. x = ± 
D. x = ± 
Mathematics
Convert the measurement as indicated.2 ft 10 in. = 
in.
A. 12 in. B. 34 in. C. 122 in. D. 32 in.
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 2, cos ? < 0Find cos 
.
A. - 
B. -
C. 
D. 
Mathematics