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Sagot :
Answer:
a)
Step-by-step explanation:
Given: Step 3
(JK)² = LK · MK and (LJ)² = LK · ML
Step 4
Addition property of equality
(JK)² + (LJ)² = LK · MK + LK · ML
Step 5
Distributive property
(JK)² + (LJ)² = LK (MK + ML)
Option A
addition property of equality
- a^2=bc
- d^2=ef
So
- a^2+d^2=bc+ef
And
Distributive property
- a(b+c)=ab+bc
Hence option A is correct
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