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Secondary 1 | Maths
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Date Posted: 4 years ago
Views: 240
(a)
400 = 2⁴ x 5²
*do u see a '4' & a '2' in the indices?
to do sq rt, just half the indices
half of '4' is 2
half of '2' is 1
so
√400 = √(2⁴ x 5²) = 2² x 5 = 4x5 = 20
.
.
.
400 = 2⁴ x 5²
*do u see a '4' & a '2' in the indices?
to do sq rt, just half the indices
half of '4' is 2
half of '2' is 1
so
√400 = √(2⁴ x 5²) = 2² x 5 = 4x5 = 20
.
.
.
u can do the same for the others
See 1 Answer
Ok ty
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