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displaystylefracleft.dy ight.left.dx ight.=-fracsec^2xsec^2y Explanation:When we differentiatedisplaystyleywrtdisplaystylexwe ...
displaystylefracleft.dy ight.left.dx ight.=200sec^2left(20 ight)x Explanation:First we need khổng lồ find the derivative ofdisplaystyle anax ...
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Amplitude=displaystyleinfty Period=displaystylefracpi^2+pi3 Explanation:The amplitude is infinity. Because thedisplaystyle anfunction is increasing over its ...
Eliminate x & y from the equations sin(x) + sin(y) = a ; cos(x) + cos(y) = b & an(x) + an(y) = c. Please don't give half baked solutions (if possible?)
https://www.quora.com/Eliminate-x-and-y-from-the-equations-sin-x-+-sin-y-a-cos-x-+-cos-y-b-and-tan-x-+-tan-y-c-Please-dont-give-half-baked-solutions-if-possible
Fiddling around with the first two equations gives us these interesting equations: a^2+b^2 = 2+2cos(x-y) fracab = tan(fracx+y2) These are very easy to lớn prove so I'll not prove them ...
There is an error in your calculation of Delta. Delta = eginvmatrixcos(2x) &sin(2x) \ -2sin(2x) &2cos(2x)endvmatrix = 2cos^2(2x)+2sin^2(2x) = 2 C'_1 = fracDelta_2Delta = -2sin^2 x ...
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left< eginarray l l 2 và 3 \ 5 & 4 endarray ight> left< eginarray l l l 2 & 0 & 3 \ -1 và 1 & 5 endarray ight>
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