Solve: cos(x+pi) = 1/2 over the interval [pi/2,pi].
A) pi/2
B) 2pi/3
C) 3pi/4
D)...
Mathematics, 24.11.2020 19:30 jroy1973
Solve: cos(x+pi) = 1/2 over the interval [pi/2,pi].
A) pi/2
B) 2pi/3
C) 3pi/4
D) 5pi/6
Answers: 2
Mathematics, 21.06.2019 20:30, nosugh
If m∠abc = 70°, what is m∠abd? justify your reasoning. using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°. using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°. using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality. using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.
Answers: 2
Mathematics, 21.06.2019 23:00, alyonaprotopopova
What ia the sum if the first 7 terms of the geometric series
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