solve ( 3 - root 5) *(3 - root 5)
Plz give correct answer
Answers
Answered by
2
Answer:
.
(3 - \sqrt{5} ) \div (3 + \sqrt{5} )(3−
5
)÷(3+
5
)
on rationalising...
(3 - \sqrt{5} ) {}^{2} \div 3 {}^{2} - \sqrt{5} {}^{2}(3−
5
)
2
÷3
2
−
5
2
9 + 5 - 6 \sqrt{5} \div 9 - 59+5−6
5
÷9−5
14 - 6 \sqrt{5} \div 414−6
5
÷4
7 - 3 \sqrt{5} \div 27−3
5
÷2
on \: comparing \: with \: \: \: a \sqrt{5} - boncomparingwitha
5
−b
a = -3 and b = 7
hope it helps you
....
Step-by-step explanation:
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Answered by
2
Step-by-step explanation:
(3 - ✓5)square
=3square - 2.3.√5+√5square
= 9 - 6√5+5
=14-6√5
=2(7-3√5)
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