Math, asked by rithik199p, 10 months ago

35) Find the value of a and b if 5+2√3÷
7+4√3 =a-b√3​

Answers

Answered by avr2005
1

Answer:

5+2√3/7+4√3=a-b√3

to find a. and. b

first rationalize the denominator

5+2√3/ 7+4√3 × 7-4√3/ 7-4√3

= 35 -20√3 + 14√3 -24/ (7)^2 - (4√3)^2

= 11- 6√3/ 49- 48

= 11- 6√3/1

therefore

a= 11

b= -6

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