MATHEMATICS

JAMB 2002 - Question 1

Mathematics 2002 JAMB Past Questions - Question 1: Without using tables ,evaluate (343)…“ X (0.14) ¯¹ X (25)¯½

Without using tables ,evaluate (343)…“ X (0.14) ¯¹ X (25)¯½
A:
B:
C:
D:
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Correct Answer

A

Explanation

To evaluate the expression (343)^(1/3) × (0.14)^(-1) × (25)^(-1/2) without using tables, we can simplify each term separately and then multiply them together.Let's start with (343)^(1/3):(343)^(1/3) = ∛343 = 7Next, let's simplify (0.14)^(-1):(0.14)^(-1) = 1/(0.14) = 7.142857142857143Finally, let's simplify (25)^(-1/2):(25)^(-1/2) = 1/√25 = 1/5 = 0.2Now, we can multiply the simplified terms together:7 × 7.142857142857143 × 0.2 = 10Therefore, the value of the expression (343)^(1/3) × (0.14)^(-1) × (25)^(-1/2) is 10.