(a + 3)² - a(a - 1) = a² + 6a + 9 - a² + a = 7a+ 9
94. k(x) = 3*2^x+10^(x*lg e)+121 = 3*2^x+10^(lg (e^x))+121 = 3*2^x + e^x + 121
k'(x) = 3*2^x*ln 2 + e^x. Ответ 3)
95. g(x) = 2*log2(x) + ln x, g'(x) = 2/(x*ln 2) + 1/x. Ответ 4)
96. q(x) = 2ln x - 3log7(x) + 5, q'(x) = 2/x - 3/(x*ln 7). Ответ 1)
3tg2x=0
tg2x=0
2x=Пn, n€Z
x=Пn/2, n€Z
=3sin2A /(2cos^2A-1)=3sin2A /(2cos^2A-sin^2A-cos^2A)=3sin2A /(cos^2A-sin^2A)=3sin2A /cos2A=3tgA