Eij ? ? ikl and ? gji ? ? jlk, as they are corresponding angles for parallel lines cut by a transversal. therefore, if ? eij ? ? gji, then ? ikl ? ? jlk by the . then, ? jlk and ? jld are supplementary angles by the , so m? jlk + m? jld = 180°. since ? ikl ? ? jlk, m? ikl = m? jlk. thus m? ikl + m? jld = 180° by the .

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like:

2, 2, 2 or -4, 20, 29

step-by-step explanation:

there is two ways you can do it.