Simplify the expression.-7 + 4(-2) - 11
A. -10
B. -33
C. -26
D. -41
Answer: C
Mathematics
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Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).9
+ 9i
A. 18(cos 30° + i sin 30°) B. 18(cos 60° + i sin 60°) C. 18(cos 330° + i sin 330°) D. 18(cos 300° + i sin 300°)
Mathematics
Graph the hyperbola.4y2 - 9x2 = 36
A. 
B. 
C. 
D. 
Mathematics
Simplify.
2 ? 
A. - 
B. 
C. - 
D. 
Mathematics
Complete the identity.
sec ? csc ? = ?
A. sec (2?)
B. 
C. csc (2?)
D. 
Mathematics