Răspuns:
a = 1 - 8/√2 + √98 - 12/√18
= 1 - 8√2/2 + 7√2 - 12√18/18
= 1 - 4√2 + 7√2 - 2√2
= 1 + √2
b = √96(1/√12 - 1/√48) - (√6)⁰
= √96(1/2√3 - 1/4√3) - 1
= √96(2/4√3 - 1/4√3) - 1
= √96×1/4√3 - 1
= √32/4 - 1
= 4√2/4 - 1
= √2 - 1
Ma = (a + b)/2 = (1 + √2 + √2 - 1)/2 = 2√2/2 = √2
Mg = √a×b = √(√2 + 1)(√2 - 1) = √2 - 1 = √1 = 1
