List questions from trigonometry

Published on 13 Apr 2026 - 22:20

132

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Find side length of son-polygon.

Published on 05 May 2026 - 7:47

33

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When I work out the LHS I get cos(x) as my answer, how do I get to the answer on the RHS?

Published on 16 Apr 2026 - 12:28

93

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solve this problem of trigonometry.

Published on 13 Apr 2026 - 6:58

132

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How $\tan{\frac{A}{2}}\tan{\frac{B}{2}}=\frac{1}{2}$,then find $\angle C$

Published on 13 Apr 2026 - 1:44

699

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find the period of a trigonometric function

Published on 15 Apr 2026 - 12:18

1.4k

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Calculating accelerometer vector when tilted

Published on 15 Apr 2026 - 12:12

121

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Trig and Inverse Trig Function Compositions

Published on 11 May 2026 - 6:12

92

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Differentiation/ find the derivative

Published on 14 Apr 2026 - 6:11

921

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$99$th derivative of $\sin x$

Published on 16 Apr 2026 - 0:20

3.9k

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finding the coordinate of a point using a distance and an angle from given point

Published on 14 Apr 2026 - 6:43

591

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unit circle trigonometry where angle is greater than 90 degrees.

Published on 23 Apr 2026 - 20:00

392

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Is $\sec^{-1}(\sec(\pi/2)) = \pi/2$?

Published on 11 Apr 2026 - 10:50

153

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$2 \cos^2 x − 2 \cos x− 1 = 0$ Find the solutions if $0^\circ \le x < 360^\circ$

Published on 17 Apr 2026 - 13:28

500

Views

Proving $\cos 36° > \tan 36° $

Published on 16 Apr 2026 - 20:02

List Question

trigonometry question (high school level)

Find side length of son-polygon.

When I work out the LHS I get cos(x) as my answer, how do I get to the answer on the RHS?

solve this problem of trigonometry.

How $\tan{\frac{A}{2}}\tan{\frac{B}{2}}=\frac{1}{2}$,then find $\angle C$

find the period of a trigonometric function

Calculating accelerometer vector when tilted

Trig and Inverse Trig Function Compositions

Differentiation/ find the derivative

$99$th derivative of $\sin x$

finding the coordinate of a point using a distance and an angle from given point

unit circle trigonometry where angle is greater than 90 degrees.

Is $\sec^{-1}(\sec(\pi/2)) = \pi/2$?

$2 \cos^2 x − 2 \cos x− 1 = 0$ Find the solutions if $0^\circ \le x < 360^\circ$

Proving $\cos 36° > \tan 36° $

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