Math, asked by sahilbanjare38, 7 months ago

प्रश्न 3 यदि a: b = c: d हो तो K नियम द्वारा सिद्ध कीजिए कि a+c2 b2+d2 ac bd​

Answers

Answered by amitnrw
1

Given : a: b = c : d

To Find :  k नियम द्वारा सिद्ध कीजिए

a²+c² :  b²+d² =  ac : bd​

Solution:

a: b = c : d

=> a/b = c/d = k

=> a = bk  and c = dk

a²+c² :  b²+d² =  ac : bd​

LHS

= (a²+c²)/  (b²+d² )

= ( (bk)² + (dk)² )/ (b² + d²)

= k²(b² + d²)/(b² + d²)

= k²

RHS

= ac/bd

= bk.dk/bd

= bdk²/bd

= k²

LHS = RHS = k²

QED

Hence proved

a²+c² :  b²+d² =  ac : bd​  if  a:b= c:d

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