Evaluate. \int\sin(x)\cos(x)\text{ d}x Use the numbers below for this problem only. |X|Y |5|0 |-4|3 |2|-5 |6|4 |-7|3 |4|4 |0|-4 sum XY = ... Prove that the estimate b_1 = n Sigma^n_i = 1 x_i y_i ...
What is - x divided by x squared minus 1? Do you mean: - x / (x2 - 1)? If so, that's as simplified as you can get. (- x / x2) - 1? If so, that simplifies to (-1/x) - 1. (-x/x)2 - 1? If so, that simplifies to 0. -(x/x)2 - 1? If so, that simplif...
What are the solutions of 2 cos squared x minus cos x equals 1? 2cos2x - cosx -1 = 0 Factor: (2cosx + 1)(cosx - 1) = 0 cosx = {-.5, 1} x = {...0, 120, 240, 360,...} degrees What is the answer to Evaluate e to the x sinx dx? Evaluate the integral? Use inte...
What is 3.162 divided by 51? Suppose that m and n are integers. Compute integral_{0}^{2 pi} cos (m x) * cos (n x) dx. Find the results when m = n = 0, m = plus or minus n not equal to 0 and when m not equal to plus or minus n, us ...
If the SuperMoon coincides with a solar eclipse, as happens on April 8, then the geocosmic shock window extends to plus or minus 7 days: in this case, that s April 1 to 15. (As stated on page 41 of my 2024 WTF, published last year: The window is larger in cases when a Stealth...
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Speech perception plays a key role in many fields of human development and social life but is often impaired by ambiguities on various levels of processing
What is X squared - Y squared divided by X-Y? (x2 - y2)/(x - y) = (x + y)(x - y)/(x - y) = x + y What is the implicit differentiation of y equals sin x plus y? y = sin(x+y) cos( x + y )[(1 + y')] = y' cos(x + y ) + y'cos(x + y ) = y...
Now we have to figure out the average or mean of these squared values to get the variance. This is done by adding up the squared results from above, then dividing it by the total count in the group (population variance) or the total count minus one (sample variance): Population Varian...
in a different mathematical context, COV is calculated as the ratio between root mean squared error and the mean of a separate dependent variable. Although this type of COV analysis is used less frequently, it can go a long way in determining if a model is an apt fit for a specific task...