List of recently published mathematics tutorials.

Jan 16, 2019

Geometry proof of cosine of double angle formula to expand cos double angle functions such as cos(2x), cos(2A), cos(2θ) or any cos function which contains double angle.

Jan 15, 2019

Introduction to cos double angle formula and learn how to write it mathematical form in various forms and also proof to learn how to derive cos double angle identity mathematically.

Jan 14, 2019

Learn the geometric and trigonometric proofs to prove the exact value of tan 45 degrees is one in mathematics.

Jan 12, 2019

Learn how to derive the sin double angle identity to expand sin double angle functions such as sin(2x) or sin(2A) or sin(2θ) or any other sin double angle function in terms of angle.

Jan 10, 2019

Introduction to tan 45 degrees and learn the value of tan 45 degrees and also geometric proof to prove the value of tan 45 degrees is one.

Jan 09, 2019

Learn how to prove cos of angle 45 degrees is equal to 1 is divided by 2 in trigonometry mathematics in both trigonometric and geometric methods.

Learn how to solve maths problems easily for learners and practitioners.

Jan 15, 2019

Math Doubts is a best place to learn mathematics and from basics to advanced scientific level for students, teachers and researchers.
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Learn how to solve easy to difficult mathematics problems of all topics in various methods with step by step process and also maths questions for practising.