jika T(x)=x-1/x maka T(a). T(1/a) sama dengan...
Jawaban:
t(x)= x-1/x
atau t(x)=(x²-1)/x
maka t(a)
= (a²-1)/a
t(1/a)= (1/a)²-1)/1/a
t(1/a)= (1/a²-1)(a)
= 1/a-a
maka t(a).t(1/a)
= (a²-1)/a ( 1-a²)/a
= (a²-1)(-)(a²-1)/a²
=(a²-1)²(-)/a²
= (a⁴-2a²+1(-))/a²
= (-a⁴+2a²-1)/a²
= -a²+2-1/a²
= 2-a²-1/a² D✓
Jawaban:
T(a) . T(1/a)
= (a - 1/a) . (1/a - a)
= 1 - a² - 1/a² + 1
= 2 -a² -1/a²
