Trigonometry Questions and Answers

0 votes

2 answers

Given that sin (x + 60)° = Cos (2x)°, find tan (x + 60)°.

asked Jul 21, 2021 in Mathematics Form 3 by anonymous

0 votes

1 answer

The table below shows some values of the curve y = 2cos x and y= 3 sin x.

asked Jul 21, 2021 in Mathematics Form 3 by anonymous

0 votes

1 answer

The figure below shows a triangle PQR in which PQ=8cm and angle QPR=1000 and angle PQR=350.Calculate to 2 decimal places the length of QR and hence the area of triangle PQR to2 decimal places.

asked Jul 21, 2021 in Mathematics Form 3 by anonymous

0 votes

1 answer

The sides of a triangle were measured and recorded as 4cm,6.2cm and 9.50cm.Calculate the percentage error in its perimeter correct to 2 decimal places.

asked Jul 21, 2021 in Mathematics Form 3 by anonymous

0 votes

1 answer

Complete the given table, for 0° ≤ x ≤ 180°

asked Jul 2, 2021 in Mathematics Form 3 by anony mous

0 votes

1 answer

Solve for θ given that

asked Jul 2, 2021 in Mathematics Form 3 by anony mous

0 votes

1 answer

In the figure below ABCDEFGH is a frustum of a right pyramid. The altitude of the frustum is 2cm

asked Jun 30, 2021 in Mathematics Form 2 by anony mous

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1 answer

A,B and C are three points on a straight line (in that order) on horizontal ground. A and B are on the side of C. At C stands a vertical tower 173.2m high. The distance from A to B is 100m and the angle of elevation of the top of the tower from A is 30°. Find the angle of elevation of the top of the tower from B.

asked Jun 30, 2021 in Mathematics Form 1 by anony mous

0 votes

1 answer

Solve the following equation for 0 ≤ x ≤ 360 2cos⁡x = sin^2 x + 2

asked Jun 30, 2021 in Mathematics Form 2 by anonymous

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1 answer

Triangle ABC is such that AB = 8 cm, BC = 11 cm and AC = 15 cm. calculate correct to 2 decimal places the; Angle ABC Radius of the circum circle

asked Jun 30, 2021 in Mathematics Form 3 by anonymous

0 votes

1 answer

Express in surd form and simplify by rationalizing the denominator.

asked Jun 30, 2021 in Mathematics Form 3 by anonymous

0 votes

1 answer

Solve the equation sin2θ - cos2θ = - 1/2 for 0°≤ θ ≤ 360°

asked Jun 18, 2021 in Mathematics Form 3 by anony mous

0 votes

1 answer

Given that sin 75° = -6+√2 Simplify 4 Sin75°

asked Jun 18, 2021 in Mathematics Form 2 by anonymous

0 votes

1 answer

A vertical electric pole was erected 6.4m from the foot of a vertical fencing pole on the same horizontal level. The fencing pole is 2m high. The angle of elevation of the top of the electric pole from the top of the fencing pole is 30°. Determine the height of the electric pole correct to 1 decimal place.

asked Jun 17, 2021 in Mathematics Form 1 by anonymous

0 votes

2 answers

Given that sin(θ+30°)=cos2θ, find the value of cos(θ+40°).

asked Jun 17, 2021 in Mathematics Form 2 by anonymous

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