Shows the proof of 3 pythagorean theorem related identities using the angle θ:

Sin^{2}(θ) + Cos^{2}(θ) = 1

Tan^{2}(θ) + 1 = Sec^{2}(θ)

Sin(θ)/Cos(θ) = Tan(θ)

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Sin

Tan

Sin(θ)/Cos(θ) = Tan(θ)

This calculator has 1 input.

- sin(θ)
^{2}+ cos(θ)^{2}= 1

tan(θ)^{2}+ 1 = sec(θ)^{2}

sin(θ)/cos(θ) = tan(θ)

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- cosine
- cos(θ) is the ratio of the opposite side to the hypotenuse.
- proof
- an inferential argument for a mathematical statement, showing that the stated assumptions logically guarantee the conclusion
- pythagorean theorem
- a fundamental relation in Euclidean geometry among the three sides of a right triangle. It states that the area of the square whose side is the hypotenuse is equal to the sum of the areas of the squares on the other two sides

a^{2}+ b^{2}= c^{2} - pythagorean theorem trig proofs
- sin
- sin(θ) is the ratio of the opposite side of angle θ to the hypotenuse
- tangent
- the straight line that just touches the curve at that point
- triangle
- a flat geometric figure that has three sides and three angles