Trigonometric terms in an arithmetic progression: check 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
Three angles \(20^\circ,\theta,80^\circ\) are in AP. Find \(\theta\) in degrees.Enter one number or fraction. Round decimals to at least six decimal places when needed.
Trigonometric terms in an arithmetic progression: check 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
Angles form the AP \(15^\circ,25^\circ,35^\circ,\ldots\). Find the ninth angle in degrees.Enter one number or fraction. Round decimals to at least six decimal places when needed.
Trigonometric terms in an arithmetic progression: check 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
If angles form an AP, must their sine values also form an AP?Choose one answer.
Trigonometric terms in an arithmetic progression: check 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
\(\sin30^\circ,k,\sin90^\circ\) are consecutive AP terms. Find \(k\).Enter one number or fraction. Round decimals to at least six decimal places when needed.
Trigonometric terms in an arithmetic progression: review variant 1
Difficulty: ★★☆Info
Maths4U Original · Short practice
The angles \(25^\circ,\theta,95^\circ\) are consecutive AP terms. Find theta in degrees.Enter one number or fraction. Round decimals to at least six decimal places when needed.
Trigonometric terms in an arithmetic progression: review variant 2
Difficulty: ★★☆Info
Maths4U Original · Short practice
Angles form \(10^\circ,25^\circ,40^\circ,\ldots\). Find the seventh angle in degrees.Enter one number or fraction. Round decimals to at least six decimal places when needed.
Trigonometric terms in an arithmetic progression: review variant 3
Difficulty: ★★☆Info
Maths4U Original · Short practice
The angles \(0^\circ,30^\circ,60^\circ\) are in AP. Find the difference between the sine of the second angle and the sine of the first.Enter one number or fraction. Round decimals to at least six decimal places when needed.
Trigonometric terms in an arithmetic progression: review variant 4
Difficulty: ★★☆Info
Maths4U Original · Short practice
\(\sin0^\circ,k,\sin90^\circ\) are consecutive AP terms. Find k.Enter one number or fraction. Round decimals to at least six decimal places when needed.