Buktikan bahwa: a. 2logx = 4log(x^2) b. alogx =

Buktikan bahwa: a. 2logx = 4log(x^2) b. alogx = (a^2)log(x^2) c. elog(x + akar(x^2 - 1)) = - elog(x - akar(x^2 - 1)) d. log((x + akar(x^2 - 1))/(x - akar(x^2 - 1))) = 2 log(x + akar(x^2 - 1)) e. (log(x + h) - logx)/h = log(1 + h/x)^(1/h) f. log(y/(a + akar(a^2 + y^2))) = log((akar(a^2 + y^2) - a)/y) g. Jika y = (theta)logx - (theta)log(1 + x), x > 0, maka x = (e^y)/(1 - e^y)