Verify the identity.sin 4x = (4 sin x cos x)(2 cos2 x - 1)
What will be an ideal response?
sin(4x) = 2 sin 2x cos 2x = (4 sin x cos x)(2 cos2 x - 1).
Mathematics
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Multiply and simplify.(9 cot ? - 9 csc ?)(9 cot ? + 9 csc ?)
A. 9(cot2? + csc2?) B. 81 C. -81 D. 81(cot2? + csc2?)
Mathematics
Write the number in decimal notation.9.523 × 10-3
A. 0.009523 B. 952,300 C. 0.0009523 D. 0.00009523
Mathematics
Decide whether the limit exists. If it exists, find its value.Find 
f(x).
A. Does not exist
B. 
C. 1
D. 0
Mathematics
Factor completely. State that the polynomial is prime if it cannot be factored.x2 - 8x + 64
A. prime B. (x + 8)(x - 8) C. (x + 8)2 D. (x - 8)2
Mathematics