Verify the identity.sin(? + ?) - sin(? - ?) = 2 cos ? sin ?
What will be an ideal response?
sin (? + ?) - sin (? - ?) = sin ? cos ? + cos ? sin ? - sin ? cos ? + cos ? sin ? = 2 cos ? sin ?.
Mathematics
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Solve the equation.
?
?
A. 7, -7, 0 B. 49, -49, 0 C. 7, -7, 1 D. 0 E. 7
Mathematics
Graph the system of inequalities. Shade the region that represents the solution set.y? 
x + y> -3
A. 
B. 
C. 
D. 
Mathematics
Graph the curve whose parametric equations are given.x = 2t - 1, y = t2 + 2; -4 ? t ? 4
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Graph the solution set and write it in interval notation.13x + 24 ? 5x + 96
A. (-9, ?)
B. [9, ?) 
C. (-?, 9]
D. (-?, -9]
Mathematics