b) 3 . 7^(3/5)
= 3 . ⁵√7³
c) (√3)^(4/5)
= ⁵√(√3)⁴
= ⁵√(√3 . √3 . √3 . √3)
= ⁵√(√9 . √9)
= ⁵√(3 . 3)
= ⁵√9
d) (1/2)^(1/2)
= √(1/2)
