Use an identity to write the expression as a single trigonometric function or as a single number.
A. tan 38°
B. cot 38°
C. sin 38°
D. cos 38°
Answer: A
Mathematics
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Evaluate.-63
A. -18 B. 216 C. -216 D. 18
Mathematics
Find the asymptotes of the hyperbola.y2 - x2 - 6x = 10
A. y + 3 = ± x B. y = ± (x + 3) C. y = ± (x - 3) D. y - 1 = ± (x + 3)
Mathematics
Convert the units using unit fractions.144 hr = 
days
A. 6 B. 42 C. 72 D. 48
Mathematics
Write the expression in standard form.i(9 - 8i)(2 - 8i)
A. -88 + 46i B. 88 - 46i C. 82 + 18i D. 64i3 + 88i2 + 18i
Mathematics