Which expression can be used to approximate the expression below, for all positive numbers a, b, and x, where a Not-equals 1 and b Not-equals 1?

log Subscript x Baseline x
StartFraction log Subscript b Baseline x Over log Subscript b Baseline a EndFraction
StartFraction log Subscript b Baseline a Over log Subscript b Baseline x EndFraction
StartFraction log Subscript a Baseline b Over log Subscript x Baseline b EndFraction
StartFraction log Subscript a Baseline x Over log Subscript b Baseline x EndFraction

answer: a and b

step-by-step explanation:

0.32

step-by-step explanation:

2.24/7

answer:   the paragraph proof is mentioned below.

step-by-step explanation:

given: in a δxwy where

such that, ∠wzx ≅ ∠yzx and zw≅zy

we have to prove that: segment zx is a perpendicular bisector of segment wy.

prove: since, zw≅zy ⇒ ∠wzy is a supplementary angle.

then, ∠wzy= 180°

⇒∠wzx + ∠yzx = 180° ( because xz divides ∠wzy into two parts)

but, ∠wzx ≅ ∠yzx ( given)

⇒∠wzy+∠wzy=180° ( by substitution)

⇒2∠wzy=180°

⇒∠wzy=90°

⇒∠wzy=∠yzx =90°

therefore, xz⊥wy where wz=zy

⇒zx is a perpendicular bisector of wy.