Question 221· The binomial theorem· WAEC
JAMB and WAEC Further Mathematics questions
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Question 222· The binomial theorem· WAEC
Find the sum of the coefficients in the expansion of (1 + x)⁵.
Explanation and discussionQuestion 223· The binomial theorem· WAEC
Use the binomial expansion to evaluate (1.01)⁵ correct to three decimal places.
Explanation and discussionQuestion 224· The binomial theorem· WAEC
The first three terms of the expansion of (1 + x)⁶ in ascending powers of x are
Explanation and discussionQuestion 225· The binomial theorem· WAEC
Find the coefficient of x² in the expansion of (1 + 2x)⁵.
Explanation and discussionQuestion 226· The binomial theorem· WAEC
In the binomial expansion of (1 + x)⁷ in ascending powers of x, what is the coefficient of the fourth term?
Explanation and discussionQuestion 227· The binomial theorem· WAEC
Using (1 + x)ⁿ ≈ 1 + nx for small x, (1.02)⁵ is approximately
Explanation and discussionQuestion 228· The binomial theorem· WAEC
The third term in the expansion of (2 + x)⁴ is
Explanation and discussionQuestion 229· The binomial theorem· WAEC
Find the term independent of x in the expansion of (x + 1/x)⁴.
Explanation and discussionQuestion 230· The binomial theorem· WAEC
The number of terms in the expansion of (a + b)⁷ is
Explanation and discussionQuestion 231· The binomial theorem· WAEC
The coefficient of x² in the expansion of (1 + x)⁵ is
Explanation and discussionQuestion 232· The binomial theorem· WAEC
Find the middle term in the expansion of (a + b)⁶.
Explanation and discussionQuestion 233· The binomial theorem· WAEC
When (2 − x)⁴ is expanded, the term in x² has coefficient
Explanation and discussionQuestion 234· The binomial theorem· WAEC
The constant term in the expansion of (x + 1/x)⁴ is
Explanation and discussionQuestion 235· The binomial theorem· WAEC
The sum of the binomial coefficients in the expansion of (1 + x)⁶ is
Explanation and discussionQuestion 236· Trigonometry· WAEC
Without using tables, find the value of sin 75°.
Explanation and discussionQuestion 237· Trigonometry· WAEC
Without tables, find tan 15°.
Explanation and discussionQuestion 238· Trigonometry· WAEC
The value of tan 45° is
Explanation and discussionQuestion 239· Trigonometry· WAEC
Solve 2 cos θ − 1 = 0 for 0° ≤ θ ≤ 360°.
Explanation and discussionQuestion 240· Trigonometry· WAEC
If sin θ = 3/5 and θ is acute, then cos θ is
Explanation and discussion
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