Question

(a-b)(c-d)/(b-c)(a-d)=2020/2021 then the value of (a-c)(b-d)

Answer 1

Answer:

option 2.

hope it's helps you.

Answer 2

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$\leadsto$ option C is correct

$\underline{\bf{\dag} \:\mathfrak{step\;by\;step\; explanation\: :}}$⠀⠀⠀

As gcd(2020,2021)=1

(a-b)(c-d)=2020

(b-c)(d-a)=2021=(a-b)(c-d)+1

bd+ac-ab-cd=ac+bd-ad-bc+1

a(d-b)+c(b-d)=1

(a-c)(b-d)=-1

(a-c)(b-d)/(a-b)(c-d)= -1/2020

${\huge{\underline{\small{\mathbb{\pink{HOPE \ THIS \ HELPED \ UH♡}}}}}}$