Identify the equation as either an identity or not.cos2x - sin2x = 1 - 2 sin2x
A. Not an identity
B. Identity
Answer: B
Mathematics
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Solve the differential equation.ex
+ 4ex y = 3, x > 0
A. y = e-x + e-4x, x > 0 B. y = e-x + Ce-4x, x > 0 C. y = e-4x + Ce-x, x > 0 D. y = ex + Ce-4x, x > 0
Mathematics
Match the given graph with its equation.
A. 4y2 - 25x2 = 100 B. 25x2 - 4y2 = 100 C. 25x2 + 4y2 = 100 D. 4x2 - 25y2 = 100
Mathematics
Find the product.(3x + 12)(3x - 12)
A. 3x2 - 72x - 144 B. 9x2 - 144 C. 9x2 - 72x - 144 D. 9x2 + 72x - 144
Mathematics
Graph the circle.x2 + (y - 4)2 = 16
A. 
B. 
C. 
D. 
Mathematics