List questions from trigonometry

Published on 16 Apr 2026 - 21:49

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Transforming position function into a sinusoidal function?

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Trigonometric Limits - solution needed: $\lim_{x\to π/2} \frac{1-\sin x+\cos x}{\sin 2x -\cos x}$

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Is this a valid trig identity for sin(a)sin(b)?

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Find the magnitude of a parallelogram?

Published on 14 Apr 2026 - 2:29

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Inequality with trigonometric functions

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Is a trig function with a constant in its parenthesis a constant?

Published on 09 Apr 2026 - 10:27

205

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For what $n$ the set $\{\sin x, \cos x, (\sin x)^2, (\cos x)^2,..., (\sin x)^n, (\cos x)^n\}$ is linearly independent?

Published on 16 Apr 2026 - 19:14

166

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Finding the cosine of an acute angle given the obtuse cosin

Published on 12 Apr 2026 - 19:30

67

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How can I show this trigonometric identity?

Published on 09 Apr 2026 - 21:37

96

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check my solution to indefinite integral problem with arccos

Published on 12 Apr 2026 - 9:20

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What is $\int x\tan(x)dx$?

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2k

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Find the slope of intercecting line given angle

Published on 11 Apr 2026 - 1:25

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Why $\cos(-\theta)$ gives positive values while in case of sine it is negative?

Published on 12 Apr 2026 - 3:22

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An almost impossible limit

Published on 10 Apr 2026 - 2:50

List Question

Arccos and inequalities

Transforming position function into a sinusoidal function?

Trigonometric Limits - solution needed: $\lim_{x\to π/2} \frac{1-\sin x+\cos x}{\sin 2x -\cos x}$

Is this a valid trig identity for sin(a)sin(b)?

Find the magnitude of a parallelogram?

Inequality with trigonometric functions

Is a trig function with a constant in its parenthesis a constant?

For what $n$ the set $\{\sin x, \cos x, (\sin x)^2, (\cos x)^2,..., (\sin x)^n, (\cos x)^n\}$ is linearly independent?

Finding the cosine of an acute angle given the obtuse cosin

How can I show this trigonometric identity?

check my solution to indefinite integral problem with arccos

What is $\int x\tan(x)dx$?

Find the slope of intercecting line given angle

Why $\cos(-\theta)$ gives positive values while in case of sine it is negative?

An almost impossible limit

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