Math, asked by PriyankaAhuja, 1 year ago

detetmine a and b if (7+√5÷7-√5)-(7-√5÷7+√5) = a+7√5b

Answers

Answered by poojan

1

[(7+√5)/(7-√5)] - [(7-√5)/(7+√5)]

= (7+√5)²-(7-√5)² ÷ (7+√5)(7-√5)
= (49+25+14√5-49-25+14√5)÷ (49-25)
= 28√5/24
= 7√5/6

From this, a=0, b=1/6

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