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How is $3\pi-10$ element of $[-\pi/2,\pi/2]$?

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#trigonometry
80
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$|\cos(z)|\leq e^{|z|}$

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#complex-analysis #trigonometry #inequality #complex-numbers #exponential-function
45
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Determine two properties of a trig function

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#derivatives #trigonometry #optimization #exponential-function #periodic-functions
488
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If $f$ is invertible is $f\left(f^{-1}(x)\right)=x$ and $f^{-1}(f(x))=x$ always True?

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#algebra-precalculus #functions #trigonometry #inverse-function
254
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Right Circular Cylinder: Distance between axis and plan

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#geometry #trigonometry #triangles #problem-solving #angle
230
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Proving $\arctan (-\sqrt3) = \frac{2\pi}{3}$ using basic methods

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#trigonometry
191
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Find the Value of $\sin^2A + \sin^2B + \sin^2C$ given the following data.

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#trigonometry #summation
2.7k
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How to solve questions like arcsin(sin 10)?

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#trigonometry #inverse
193
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Why must the coordinates of a point on a circle be sinusoidal as a function of the angle?

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#trigonometry #angle
996
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Find maximum and minimum of $\sin x + \sin y$

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#trigonometry #optimization #maxima-minima #jensen-inequality #karamata-inequality
50
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Isolating y in the following formula

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#trigonometry
401
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Solve equation with exponential and sine.

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#trigonometry #complex-numbers #exponential-function
63
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tan(x) from sin(x) and cos(x)

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#trigonometry
401
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Given $\cos (\theta)$ and $\sin (\theta)$, find $2\theta$

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#trigonometry
140
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$\sqrt{2} x^2 - \sqrt{3} x +k=0$ with solutions $\sin\theta$ and $\cos\theta$, find k

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#algebra-precalculus #trigonometry #roots #quadratics

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