（a）Express Iga + 31gb- 3 as a single logarithm. (i) Express log 2 in terms of a logarithm to base 2.

(ii) Using the result of part (i), and the substitution u= log2x, find the values of x which satisfy
the equation log r = 3 – 2 log, 2.
[4]

answer: options?

step-by-step explanation:

lol we need to see what the question is asking about

step-by-step explanation:

x=0

step-by-step explanation:

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)