5. Evaluate (13 + 23 +33)1/2.
(B) 1
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Answered by
1
Step-by-step explanation:
(13+23+33)1/2
(36+33)1/2
(69)1/2
69/2
=34.5
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Answered by
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34.5 a) (13 + 23 + 33) 1/2
= (1 + 8 + 27)1/2
= (36)1/2
= (42)1/2
= 4
b) √45 - 3√20 + 4√5
= √(9 × 5) − 3√(4 × 5) + 4√5
= 3√5 − 6√5 + 4√5
= √5
= (1 + 8 + 27)1/2
= (36)1/2
= (42)1/2
= 4
b) √45 - 3√20 + 4√5
= √(9 × 5) − 3√(4 × 5) + 4√5
= 3√5 − 6√5 + 4√5
= √5
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