Perform the indicated operation. Simplify, if possible.
- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Verify the identity.cos 4x = cos4 x - 6 sin2 x cos2 x+ sin4 x
What will be an ideal response?
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What does the abbreviation stand for?qt.
A. quantity B. quart C. quarter D. quiet
Mathematics
Solve the equation.
= 10
A. {-8, 0} B. {-6, 0} C. {-6, 4} D. {-8, 2}
Mathematics
Write the complex number in polar form. Express the argument in degrees, rounded to the nearest tenth, if necessary.-4i
A. 4(cos 90° + i sin 90°) B. 4(cos 0° + i sin 0°) C. 4(cos 270° + i sin 270°) D. 4(cos 180° + i sin 180°)
Mathematics