Question

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Answer 1

Answer:

(15a^2+4b^2)/(15a^2-4b^2)=47/7

=> 47(15a^2-4b^2)=7(15a^2+4b^2)

=> 705a^2-188b^2=105a^2+28b^2

=> 705a^2-105a^2=28b^2+188b^2

=> 600a^2=216b^2

=> a^2=216b^2/600=18b^2/50=9b^2/25

so,

(b^2-2a^2)/(b^2+2a^2)

=(b^2-2.9b^2/25)/(b^2+2.9b^2/25)

=(25b^2-18b^2)/25/(25b^2+18b^2)/25

=> 7b^2/43b^2

=> 7/43

the value is 7/43

Answer 2

Answer:

me bhi thik hoo

Step-by-step explanation:

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