(1) Simplify 9 -2√5÷2-√5 +9+2√5÷2+√5
(2) Simplify 1÷(2-√3)^2 - 1÷(2+√3)^2
(3) if A= √5 -√3÷√5 + √3 and B= √5 +√3÷√5 -√3
Find out the value of 3a^2 -5ab +3b^2
(4) find the side marked with letters
Without using a calculator or mathematical tables evaluate 3÷√3 [2÷√3 - √12÷6]?
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Asked by Aiyel9 on 1st October, 2020
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