Find all real numbers in the interval [0, 2?) that satisfy the equation. 2 sin2 x = sin x
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Using a sum or difference identity, write the following as an expression involving functions of ?.sin (? + 45°)
A. sin ?
B. -cos ?
C. 
cos ? + 
sin ?
D. 
cos ? - 
sin ?
Mathematics
Use the remainder theorem to find P(k).k = - 
; P(x) = 6x3 - 27x2 - 13x
A. 2 B. -2 C. 0 D. -1
Mathematics
Use the graph of the inequality to find the set.A = {x|x < -3}, B = {x|x > 3}Find A ? B.
A. {x|x > 3}; (3, ?)
B. {x|-3 < x < 3}; (-3, 3)
C. { }; ?
D. {x|x < 3}; (-?, -3)
Mathematics
Solve the first-order linear system x? = x ? y, y? = y ? 4x
What will be an ideal response?
Mathematics