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(3√5)⁶ = (3)⁶ . (5¹/²)⁶ = 3⁶. 5³ = (729)(125)= 91.125
9)
√32 - √2 + √128 =
= √16. √2 - √2 + √64. √2
= 4√2 - √2 + 8√2
= (4 -1 + 8)√2
= 11 √2
10).
p = -2, q =3, r = - 2
nilai 6 (pqr)⁻² = 6 (-2x3x-2)⁻² = 6(12)⁻² = 6/12²= 6/144 = 1/24