Math, asked by garimasharma314, 6 months ago

यदि(a+b)2 = 100 और a:b=1:3 है तो ab ज्ञात करें
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Answers

Answered by bagkakali
0

Answer:

(a+b)^2=100

a+b=10

a:b=1:3

a/b=1/3

b=3a

a+b=10

a+3a=10

4a=10

a=10/4=5/2

b=3.a=3.5/2=15/2

so , ab=5/2.15/2=75/4

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