Question

help me please













?????​

Answer 1

Answer:

$⇒ \frac{7 + 3 \sqrt{5} }{3 + \sqrt{5} } - \frac{7 - 3 \sqrt{5} }{3 - \sqrt{5} } = a + \sqrt{5b}$

$⇒ \frac{7 + 3 \sqrt{5} }{3 + \sqrt{5} } \times \frac{3 - \sqrt{5} }{3 - \sqrt{5} } - \frac{7 - 3 \sqrt{5} }{3 - \sqrt{5} } \times \frac{3 + \sqrt{5} }{3 + \sqrt{5} } = a + \sqrt{5b}$

$⇒ \frac{(7 + 3 \sqrt{5} )(3 - \sqrt{5}) }{9 - 5} - \frac{(7 - 3 \sqrt{5})(3 + \sqrt{5} ) }{9 - 5} = a + \sqrt{5b}$

$⇒ \frac{21 - 7 \sqrt{5} + 9 \sqrt{5} - 15 - 21 - 7 \sqrt{5} + 9 \sqrt{5} + 15 }{4} = a + \sqrt{5b}$

$⇒ \frac{ - 14 \sqrt{5} + 18 \sqrt{5} }{4} = a + \sqrt{5b}$

$⇒ \frac{4 \sqrt{5} }{4} = a + \sqrt{5b}$

$⇒ \sqrt{5} = a + \sqrt{5b}$

Hence:

$\textbf{Value of A = 0 and B = 1}$

━━━━━━━━━━━━━━━━━━━━━━━

#Brainy star

#Brainly moderator

#Brainly user

#Nawab

#itzPapaKaHelicopter

#itsPapaKaHelicopter

$\\ \\ \\ \\ \sf \colorbox{lightgreen} {\red★ANSWER ᵇʸɴᴀᴡᴀʙ}$

Answer 2

Answer:

hope it may help

have a nice day