WAEC (WASSCE) Mathematics · Trigonometry
Sine, Cosine and Tangent of an angle: WAEC Mathematics Past Questions and Answers
What the WAEC syllabus covers in Sine, Cosine and Tangent of an angle
Our summary: The three basic trig ratios, their values for common angles and their graphs.
- Sine, Cosine and Tangent of acute angles
- Use of tables of trigonometric ratios
- Trigonometric ratios of 30°, 45° and 60°
- Sine, cosine and tangent of angles from 0° to 360°
- Graphs of sine and cosine
- Graphs of trigonometric ratios
Syllabus content © The West African Examinations Council (WASSCE (harmonised West African syllabus)).
WAEC (WASSCE) Mathematics questions on Sine, Cosine and Tangent of an angle
- WAEC 2024A ladder 15 m long leans against a vertical pole, making an angle of 72º with the horizontal. Calculate, correct to one decimal place, the distance between the…
- WAEC 2023Find the value of a in the equation: cos (a + 14)° = sin (4a + 6)°
- WAEC 2022A ladder 6m long leans against a vertical wall at an angle 53º to the horizontal. How high up the wall does the ladder reach?
- WAEC 2022Given that sin (5x-28)° = cos (3x-50)", 0°≤ x ≤ 90°, find the value of x.
- WAEC 2021if tanθ = frac 3 4 , 180° < θ < 270°, find the value of cosθ.
- WAEC 2021Given that sin x = 3/5 , 0 ≤ x ≤ 90, evaluate (tan x + 2cosx)
- WAEC 2020If tan y is positive and sin y is negative, in which quadrant would y lie?
- WAEC 2019If tan x = 3/4 , 0 < x < 90 ^o , evaluate x/2 sin x
- WAEC 2018If tan x = 4/3 , 0 ^o < x < 90 ^o , find the value of sin x - cos x
- WAEC 2017Given that cos 30 ^o = sin 60 ^o = 3/2 and sin 30 ^o = cos 60 ^o = 1/2 , evaluate tan 60^o - 1/1 - tan 30^o
- WAEC 2016If cos = x and sin 60o = x + 0.5 0o < < 90o, find, correct to the nearest degree, the value of
- WAEC 2015PQRS is a square. If x is the midpoint of PQ, calculate correct to the nearest degree, <PXS.
- WAEC 2014Given that cos x = 12/13 , evaluate 1 - x/ x
- WAEC 2013If sin x = 5/13 and 0o x 90o, find the value of (cos x - tan x)
- WAEC 2011Given that cos xo = 1/r , express tan x in terms of r
- WAEC 2010If sin 3y = cos 2y and 0o 90o, find the value of y
- WAEC 2010Given that tan x = 1, where 0o x 90o, evaluate 1 - ^2 x/ x
Years with Sine, Cosine and Tangent of an angle questions in DeeepSolve's question bank
From the past questions DeeepSolve holds, not a count of everything the exam body has set.
- 2024
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