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Additive Identity Property

Displays the line by line proof for the additive identity property

DeMorgans Laws

Demonstrates DeMorgans Laws including the proof

Proofs

Various Proofs in Algebra

Pythagorean Theorem

Figures out based on user entry the missing side or missing hypotenuse of a right triangle. In addition, the calculator shows the proof of the Pythagorean Theorem and then determines by numerical evaluation if the 2 sides and hypotenuse you entered are a right triangle using the Pythagorean Theorem

Pythagorean Theorem Trig Proofs

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)

Sin

Tan

Sin(θ)/Cos(θ) = Tan(θ)

Rule of 72

Calculates how long it would take money to double (doubling time) using the rule of 72 interest approximation as well as showing the mathematical proof of the Rule of 72.

3 more questions added

Answer updates

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,

Here is Practical Explanation about Next Life, Purpose of Human Life, philosophical/religious facts,