Question

Show that the triangle which satisfy the inequality $\frac{\sin^2 A+\sin^2 B+\sin^2 C}{\cos^2 A+\cos^2 B+\cos^2 C}=2$

score 659 · Answer 1 · 2026-04-17 07:55:17

659

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Show that the triangle which satisfy the inequality $\frac{\sin^2 A+\sin^2 B+\sin^2 C}{\cos^2 A+\cos^2 B+\cos^2 C}=2$

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List Question

Show that the triangle which satisfy the inequality $\frac{\sin^2 A+\sin^2 B+\sin^2 C}{\cos^2 A+\cos^2 B+\cos^2 C}=2$

Cross section with equilateral triangles and integration

Proving triangles congruent with circles

Angle between a plane defined by three points (x, y, z are unknown) and the horizontal

Formula for sides of a triangle where the Perimeter equals to the Area

slice up a slice of a triangle into n areas of equal size

Equality of triangle inequality in complex numbers

Using the Law of Sines to find all triangles with given values of two sides and an angle

Find radius of a circle which is tangent to three known lines

Question on inscribed equilateral triangle

Distances to line passing through the centroid of triangle

How $\pi$, $3.1415...$ and $180^o$ are adaptive together?!

Area of a quadrilateral inside right angled triangle

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