WAEC - Further Mathematics (2020 - No. 21)
If the binomial expansion of (1 + 3x)\(^6\) is used to evaluate (0.97)\(^6\), find the value of x.
0.03
0.01
- 0.01
- 0.03
คำอธิบาย
(1 + 3x )\(^6\) = (0.97)\(^6\)
1 + 3x = 0.97
3x = 0.97.1
\(\frac{3x}{3} = \frac{0.03}{3}\)
x = -0.01