Use the given information to find the exact value of the trigonometric expression.tan ? = 
; ? < ? < 
Find tan(2?).
A. - 
B. - 
C. 
D. 
Answer: C
Mathematics
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Use the quadratic formula to find the exact solutions.x2 = 15 + 9x
A. 
B. 9 ± 
i
C. 9, 15
D. 
± 
i
Mathematics
Determine if the given polar coordinates represent the same point.(6, ?/6), (6, 7?/6)
A. Yes B. No
Mathematics
Estimate the error that is made by approximating the sum of the given series by the sum of the first five terms.
A. 0.025 B. 0.1903 C. 0.2231 D. 0.1608
Mathematics
Find the vertices of the ellipse.
+ 
= 1
A. (-1, -10), (-1, 2) B. (-14, -4), (6, -4) C. (-1, -14), (-1, 6) D. (-1, -12), (-1, 4)
Mathematics