Find a &b if root 7-1/root7+1+root7+1/root7-1=a+broot7
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Answered by
0
Answer:A=2 root 7
B=1/6
Step-by-step explanation:
A=4
B&7 is too killer
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Answered by
1
Answer:
(√7-1/√7+1)-(√7+1/√7-1)=a+b√7
or, {(√7-1)(√7-1)-(√7+1)(√7+1)}/{(√7+1)(√7-1)}=a+b√7
or, {(√7-1)²-(√7+1)²}/{(√7)²-(1)²}=a+b√7
or, (7-2√7+1-7-2√7-1)/(7-1)=a+b√7
or, (-4√7)/6=a+b√7
or, -2√7/3=a+b√7
or, 0+(-2/3)√7=a+b√7
Equating both sides,
a=0, b=-2/3
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