Question 161· Sets, binary operations and logic· WAEC
JAMB and WAEC Further Mathematics questions
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- Explanation and discussion
Question 162· Sets, binary operations and logic· WAEC
The contrapositive of "If p then q" is
Explanation and discussionQuestion 163· Sets, binary operations and logic· WAEC
What is the converse of 'If a figure is a square, then it is a rectangle'?
Explanation and discussionQuestion 164· Sets, binary operations and logic· WAEC
The statement p ⇒ q is false only when
Explanation and discussionQuestion 165· Sets, binary operations and logic· WAEC
The operation a * b = a + b + 3 on the real numbers has identity element −3. Find the inverse of 2.
Explanation and discussionQuestion 166· Sets, binary operations and logic· WAEC
If p is true and q is false, what is the truth value of p ⇒ q?
Explanation and discussionQuestion 167· Sets, binary operations and logic· WAEC
n(U) = 50, n(A) = 30, n(B) = 25 and n(A ∩ B) = 12. Find n(A′ ∩ B′).
Explanation and discussionQuestion 168· Sets, binary operations and logic· WAEC
What is the negation of the statement 'All students passed'?
Explanation and discussionQuestion 169· Sets, binary operations and logic· WAEC
The operation ∘ is defined on the real numbers by a ∘ b = 2a + b − 3. Find (4 ∘ 5) − (5 ∘ 4).
Explanation and discussionQuestion 170· Sets, binary operations and logic· WAEC
If p is 'it is raining' and q is 'the ground is wet', the statement p ⇒ q means
Explanation and discussionQuestion 171· Sets, binary operations and logic· WAEC
If n(A) = 8, n(B) = 6 and n(A ∩ B) = 3, then n(A ∪ B) is
Explanation and discussionQuestion 172· Sets, binary operations and logic· WAEC
The contrapositive of 'if x = 2, then x² = 4' is
Explanation and discussionQuestion 173· Sets, binary operations and logic· WAEC
Find the identity element of the operation a * b = a + b + 3 on the set of real numbers.
Explanation and discussionQuestion 174· Sets, binary operations and logic· WAEC
The number of subsets of a set with 4 elements is
Explanation and discussionQuestion 175· Sets, binary operations and logic· WAEC
A binary operation * is defined on the real numbers by a * b = a + b − 2ab. Find 3 * 2.
Explanation and discussionQuestion 176· Statics· WAEC
The moment of a 10 N force about a point 0.5 m from its line of action is
Explanation and discussionQuestion 177· Statics· WAEC
A uniform rod 2 m long and of weight 40 N is hinged at one end and held horizontal by a vertical force at the other end. Find the force.
Explanation and discussionQuestion 178· Statics· WAEC
When a particle is in equilibrium under three forces, the forces drawn in order, head to tail, form
Explanation and discussionQuestion 179· Statics· WAEC
Two forces of 3 N and 4 N act at a point at right angles to each other. The magnitude of their resultant is
Explanation and discussionQuestion 180· Statics· WAEC
A uniform beam 4 m long rests on a support at its midpoint. A 30 N weight hangs 1 m from one end. What weight hung at the other end keeps the beam horizontal?
Explanation and discussion
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