F(x) =1/2(2^x+2^-x) tentukan nilai f(1/2)

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F(x) =1/2(2^x+2^-x) tentukan nilai f(1/2)

Jawaban Terkonfirmasi

Jawab

f(x)= 1/2 (2^x + 2^-x)
f(x) = 1/2 (2^x + 1/(2^x))

f(1/2) = 1/2 (√2 – 1/√2)
= 1/2 (√2 – 1/2 √2)
= 1/2 (1/2 √2)
= 1/4 √2