please answer this question
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heya !!!
here is your answer!!!
hope it helps you dear!!!
thanks !!!
here is your answer!!!
hope it helps you dear!!!
thanks !!!
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Anonymous:
nice answer
Answered by
12
HELLO DEAR,
a = 7 - 4√3
=> 1/a = 1/(7 - 4√3) ×(7 + 4√3)/(7 + 4√3)
=> (7 + 4√3)/( 49 - 48)
=> 1/a = 7 + 4√3
now,
(√a + 1/√a)² = a + 1/a + 2√a × 1/√a
=> 7 - 4√3 + 7 + 4√3 + 2
=> 14 + 2
=> (√a + 1/√a)² = 4²
=> √a + 1/√a = +-2
I HOPE ITS HELP YOU DEAR,
THANKS
a = 7 - 4√3
=> 1/a = 1/(7 - 4√3) ×(7 + 4√3)/(7 + 4√3)
=> (7 + 4√3)/( 49 - 48)
=> 1/a = 7 + 4√3
now,
(√a + 1/√a)² = a + 1/a + 2√a × 1/√a
=> 7 - 4√3 + 7 + 4√3 + 2
=> 14 + 2
=> (√a + 1/√a)² = 4²
=> √a + 1/√a = +-2
I HOPE ITS HELP YOU DEAR,
THANKS
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