Answered

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please help me i’ll mark brainlist

Please Help Me Ill Mark Brainlist class=

Sagot :

meowsclesfnx

i dont see it it is too far

Answer:

see explanation

Step-by-step explanation:

A - eliminate the fractions → d

B

[tex]\frac{1}{r_{1} }[/tex] + [tex]\frac{1}{r_{2} }[/tex] = [tex]\frac{1}{R}[/tex]

multiply through by Rr₁r₂ to clear the fractions

Rr₂ + Rr₁ = r₁r₂ ( factor out R from each term on the left side )

C

R(r₂ + r₁) = r₁r₂ ← divide both sides by (r₂ + r₁)

R = [tex]\frac{r_{1}r_{2} }{r_{2}+r_{1} }[/tex]

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