Express the sum or difference as a product.cos 6x + cos 4x
A. 2 cos 5x cos x
B. 2 cos 5x
C. 2 sin 5x sin x
D. 2 cos 5x sin x
Answer: A
Mathematics
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Determine whether or not the graph is a graph of a function of x.
A. Function B. Not a function
Mathematics
Solve and check the equation.0.06 = 0.5x - 7
A. {-13.88} B. {14.12} C. {6.56} D. {3.53}
Mathematics
If P = I2 ú R and I = 2 mA, R = 470 ê, find P.
a. Ý188 mW b. 1.88 mW c. 18.8 mW d. 188 mW
Mathematics
Verify the identity.csc4 x - cot4 x = csc2 x + cot2 x
What will be an ideal response?
Mathematics