Find the value of a and b if 7+√5÷7-√5+7-√5÷7+√5=a+7÷11√5b
littyissacpe8b60:
are you sure both values to be added. 7+√5÷7-√5 +? here it is plus or -
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7 + √5 + 7 - √5
7 - √5 7 + √5
(7 +√5)² + (7 - √5)²
7² - (√5)²
49 + 5 +14√5 + 49 +5 - 14√5
44
108/44 = a + 7√5b/11
a = 27/11
b =0
I think question is wrong no √5 comes
if Question is like this
7 + √5 - 7 - √5
7 - √5 7 + √5
(7 +√5)² - (7 - √5)²
7² - (√5)²
49 + 5 +14√5 - 49 - 5 + 14√5
44
28√5/44 = 7√5/11
a + 7√5b/11
in this a = 0
b = 1
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