Compute K(ω)=20lg(1/(1+τ⋅ω)12), as ω=1.3, τ=R⋅C, R=992 ja C=0.001. Use two decimals in your answer.

K(1.3)=

so, what's the problem?

K(1.3)=20lg(1/(1+(992*0.001)⋅1.3)^12)

no idea what lg are, but use their values and then run the result through any online calculator, such as google or wolframalpha