1) 36- x(2)
2) y(2) - 64
3)25- a(2)
4) 9x(2) - 4y(2)
Дальше ты сам, справишься. Смотри и делай по формуле: (a+b)(a-b) = a(2)-b(2). И смотри на душку с минусом! Это важно.
а) ![89^{2}=(80+9)^{2}=80^{2}+2\cdot80\cdot9+9^{2}=6400+1440+81=7921](https://tex.z-dn.net/?f=89%5E%7B2%7D%3D%2880%2B9%29%5E%7B2%7D%3D80%5E%7B2%7D%2B2%5Ccdot80%5Ccdot9%2B9%5E%7B2%7D%3D6400%2B1440%2B81%3D7921)
б) ![102^{2}=(100+2)^{2}=100^{2}+2\cdot100\cdot2+2^{2}=10000+400+4=10404](https://tex.z-dn.net/?f=102%5E%7B2%7D%3D%28100%2B2%29%5E%7B2%7D%3D100%5E%7B2%7D%2B2%5Ccdot100%5Ccdot2%2B2%5E%7B2%7D%3D10000%2B400%2B4%3D10404)
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a) ![89^{2}=(100-11)^{2}=100^{2}-2\cdot100\cdot11+11^{2}=10000-2200+121=7921](https://tex.z-dn.net/?f=89%5E%7B2%7D%3D%28100-11%29%5E%7B2%7D%3D100%5E%7B2%7D-2%5Ccdot100%5Ccdot11%2B11%5E%7B2%7D%3D10000-2200%2B121%3D7921)
б) ![102^{2}=(110-8)^{2}=110^{2}-2\cdot110\cdot8+8^{2}=12100-1760+64=10404](https://tex.z-dn.net/?f=102%5E%7B2%7D%3D%28110-8%29%5E%7B2%7D%3D110%5E%7B2%7D-2%5Ccdot110%5Ccdot8%2B8%5E%7B2%7D%3D12100-1760%2B64%3D10404)
Ответ:
Объяснение:
1) преобразуем у=8x^(-3)+3/x-4x^(3/2)+2x^7, y'=-24x^(-4)-3/x^2-6x^(1/2)+14x^6=-24/x^4-3/x^2-6Vx+14x^6 (V-корень)
2)y'=1/2cos x/2
3) y'=-4(5x-3)' / (5x-3)^2=-20 /(5x-3)^2