Peer reviewed
Direct linkERIC Number: EJ789618
Record Type: Journal
Publication Date: 2008-Apr
Pages: 6
Abstractor: Author
ISBN: N/A
ISSN: ISSN-0020-739X
EISSN: N/A
Alternative Proofs for Inequalities of Some Trigonometric Functions
Guo, Bai-Ni; Qi, Feng
International Journal of Mathematical Education in Science and Technology, v39 n3 p384-389 Apr 2008
By using an identity relating to Bernoulli's numbers and power series expansions of cotangent function and logarithms of functions involving sine function, cosine function and tangent function, four inequalities involving cotangent function, sine function, secant function and tangent function are established.
Descriptors: Trigonometry, Mathematics Instruction, Validity, Mathematical Logic, Mathematical Concepts
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
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