Math, asked by Dablukumar, 1 year ago

find the value of a and b it's an urgent please

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Answered by ShuchiRecites
1
Hello Mate!

 \frac{7 + 3 \sqrt{5} }{3 +  \sqrt{5} }  \times  \frac{3 -  \sqrt{5} }{3 -  \sqrt{5} }  \\  \frac{(7 + 3 \sqrt{5})( 3-  \sqrt{5}  )}{9 - 5}  \\  \frac{21 - 7 \sqrt{5}  + 9 \sqrt{5} - 15 }{4}  \\  \frac{6 + 2 \sqrt{5} }{4}  =  \frac{3 +  \sqrt{5} }{2}
 \frac{7 - 3 \sqrt{5} }{3 -  \sqrt{5} }  \times  \frac{3 +  \sqrt{5} }{3 +  \sqrt{5} }  \\  \frac{(7 - 3 \sqrt{5})(3 +  \sqrt{5} ) }{9 - 5}  \\  \frac{21 + 7 \sqrt{5}  - 9 \sqrt{5}  - 15}{4}  \\  =  \frac{3 -  \sqrt{5} }{2}  \\  \frac{3 +  \sqrt{5} }{2}  -  \frac{3 -  \sqrt{5} }{2}  = a + b \sqrt{5}  \\  \frac{3 +  \sqrt{5}  - 3 +  \sqrt{5} }{2}  = a + b \sqrt{5}  \\ 0 +  \sqrt{5}  = a + b \sqrt{5}  \\ a = 0 \\ b = 1

Hope it helps☺!✌
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