*Use trigonometry inequality to show a geometric fact.*

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Displaying 131 - 140 of 1135

*An alternative criterion to determine if a number is irrational*

*Using geometry to find the derivatives of inverse trigonometric functions*

*Find the real interest.*

*The author uses geometry to clarify Simpson Paradox.*

*Non-commutative and non-associative examples*

*A new way to look at the base change formula*

*A geometric explanation of the reflective property of an ellipse*