Use the fundamental identities and appropriate algebraic operations to simplify the expression.sin4 x - cos4 x + cos2 x
A. sin2 x
B. 0
C. 1
D. cos2 x
Answer: A
Mathematics
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Is the function graphed below one-to-one?
A. Yes B. No
Mathematics
Determine whether the two graphs are isomorphic. If they are, illustrate the isomorphism.
What will be an ideal response?
Mathematics
Divide by moving the decimal point the appropriate number of places to the left.0.857 ÷ 1000
A. 0.0000857 B. 857 C. 0.000857 D. 0.00857
Mathematics
E = 30 V, R1 = 5 Kê, R2 = 5 Kê, and R3 = 5 Kê. Find I1.
a. 6 mA
b. 4 mA
c. 3 mA
d. 2 mA
e. 1 mA
Mathematics