Mathematics, 16.10.2021 19:40 deena7
Cho phương trình dao động x = 4×cos(4×π×t + π÷2)∧cm
a)cho biết biên độ pha ban đầu tần số góc
b)tình tần số, chu kỳ
c)tính li độ tại t=0.25 (s)
Answers: 2
Mathematics, 21.06.2019 18:30
Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much
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Mathematics, 21.06.2019 21:00
Bo is buying a board game that usually costs bb dollars. the game is on sale, and the price has been reduced by 18\%18%. what could you find the answer?
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Mathematics, 22.06.2019 00:30
An unknown number x is at most 10. which graph best represents all the values of x? number line graph with closed circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the right. number line graph with open circle on 10 and shading to the left. number line graph with closed circle on 10 and shading to the left.
Answers: 1
Mathematics, 22.06.2019 01:10
Evaluate 8x2 + 9x − 1 2x3 + 3x2 − 2x dx. solution since the degree of the numerator is less than the degree of the denominator, we don't need to divide. we factor the denominator as 2x3 + 3x2 − 2x = x(2x2 + 3x − 2) = x(2x − 1)(x + 2). since the denominator has three distinct linear factors, the partial fraction decomposition of the integrand has the form† 8x2 + 9x − 1 x(2x − 1)(x + 2) = correct: your answer is correct. to determine the values of a, b, and c, we multiply both sides of this equation by the product of the denominators, x(2x − 1)(x + 2), obtaining 8x2 + 9x − 1 = a correct: your answer is correct. (x + 2) + bx(x + 2) + cx(2x − 1).
Answers: 3
Cho phương trình dao động x = 4×cos(4×π×t + π÷2)∧cm
a)cho biết biên độ pha ban đầu tần số góc
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