Advertisements
Advertisements
Question
State for any acute angle θ whether sin θ increases or decreases as θ increases
Options
Increases
Decreases
Advertisements
Solution
For acute angles, remember what sine means: opposite over hypotenuse. If we increase the angle, then the opposite side gets larger. That means "opposite/hypotenuse" gets larger or increases.
APPEARS IN
RELATED QUESTIONS
Solve the following equation for A, if sec 2A = 2
Solve the following equation for A, if tan 3 A = 1
Find the value of 'A', if 2 cos A = 1
If `sqrt(2) = 1.414 and sqrt(3) = 1.732`, find the value of the following correct to two decimal places tan60°
Find the value of 'x' in each of the following:
Find the value 'x', if:
In the given figure, a rocket is fired vertically upwards from its launching pad P. It first rises 20 km vertically upwards and then 20 km at 60° to the vertical. PQ represents the first stage of the journey and QR the second. S is a point vertically below R on the horizontal level as P, find:
a. the height of the rocket when it is at point R.
b. the horizontal distance of point S from P.
Evaluate the following: cot27° - tan63°
Evaluate the following: `(2sin28°)/(cos62°) + (3cot49°)/(tan41°)`
If cos3θ = sin(θ - 34°), find the value of θ if 3θ is an acute angle.
