Question 241· Trigonometry· WAEC
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WAEC Further Mathematics questions
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All topicsCoordinate geometry and conic sections · 16Differentiation · 18Dynamics · 15Functions and rational functions · 15Integration · 16Matrices and determinants · 16Permutations and combinations · 15Polynomials and the remainder theorem · 16Probability · 16Sequences and series · 16Sets, binary operations and logic · 16Statics · 14Statistics · 15Surds, indices and logarithms · 16The binomial theorem · 15Trigonometry · 16Vectors · 16
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Question 242· Trigonometry· WAEC
In triangle ABC, a = 7 cm, b = 5 cm and C = 60°. Find c.
Explanation and discussionQuestion 243· Trigonometry· WAEC
The value of sin 30° + cos 60° is
Explanation and discussionQuestion 244· Trigonometry· WAEC
The period of y = sin 2x is
Explanation and discussionQuestion 245· Trigonometry· WAEC
Convert 135° to radians.
Explanation and discussionQuestion 246· Trigonometry· WAEC
Solve sin θ = −1/2 for 0° ≤ θ ≤ 360°.
Explanation and discussionQuestion 247· Trigonometry· WAEC
sin 2x is equal to
Explanation and discussionQuestion 248· Trigonometry· WAEC
sin 2θ is equal to
Explanation and discussionQuestion 249· Trigonometry· WAEC
Find the area of a triangle with sides 8 cm and 10 cm and included angle 30°.
Explanation and discussionQuestion 250· Trigonometry· WAEC
Express cos 2A in terms of sin A.
Explanation and discussionQuestion 251· Trigonometry· WAEC
sin²θ + cos²θ equals
Explanation and discussionQuestion 252· Vectors· WAEC
Find the unit vector in the direction of 3i + 4j.
Explanation and discussionQuestion 253· Vectors· WAEC
If a = 3i + 4j, find the magnitude of a.
Explanation and discussionQuestion 254· Vectors· WAEC
If a = 3i + 4j, then |a| is
Explanation and discussionQuestion 255· Vectors· WAEC
Find the angle between a = i + j and b = i − j.
Explanation and discussionQuestion 256· Vectors· WAEC
If a = 5i − 2j, then 3a is
Explanation and discussionQuestion 257· Vectors· WAEC
The unit vector in the direction of 6i + 8j is
Explanation and discussionQuestion 258· Vectors· WAEC
Two vectors are perpendicular if their dot product is
Explanation and discussionQuestion 259· Vectors· WAEC
If a = 2i − j and b = i + 3j, then a + b is
Explanation and discussionQuestion 260· Vectors· WAEC
Given a = 2i − 3j and b = −i + 5j, find |a + b|.
Explanation and discussion
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