Use the power-reducing identities to rewrite the expression that does not contain trigonometric functions of power greater than 1.sin4 x - cos4 x
A. sin 2x
B. cos x
C. cos 2x
D. - cos 2x
Answer: D
Mathematics
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Write the Roman numeral as a Hindu-Arabic numeral.
DCLV
A. 6655 B. 42,655 C. 43,655 D. 41,655
Mathematics
Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 8 amperes when the resistance is 492 ohms. What is the current when the resistance is 384 ohms?
A. 6.2 amperes B. 0.16 amperes C. 0.1 amperes D. 10.3 amperes
Mathematics
Find the indicated sum.
A. -30 B. -35 C. -5 D. -14
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 2
D. x2 + 2
Mathematics