## Latest Math Topics

List of recently published mathematics tutorials.

Sep 16, 2018

#### Proof of Product Rule of Logarithms

Learn how to derive the product rule of logarithms in mathematics and know how the formula of product law is expressed in algebraic form.

Sep 13, 2018

#### Proof of $\dfrac{d}{dx} \, \ln{x}$ formula

Learn how to prove the differentiation of natural logarithm of x with respect x is equal to 1/x in differential calculus for learners.

Sep 11, 2018

#### Supplementary angles

Introduction to concept of supplementary angles and example to learn the formation of supplementary angles for those want to learn geometry clearly.

Sep 9, 2018

#### Geometric Proof of Cos of sum of two angles identity

Learn how to derive the cos(A+B) identity in geometric method to expand cosine of sum of two angles in terms of cos and sin of angles A and B.

Sep 6, 2018

#### Properties of Right triangle when its angle is zero

Learn properties of right triangle and also how to derive the properties of right angled triangle when its angle is zero degrees.

### Math Problems

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

Sep 17, 2018

Sep 14, 2018

Sep 12, 2018

Sep 10, 2018

Sep 7, 2018

Sep 6, 2018

#### Evaluate $\displaystyle \large \lim_{x \,\to\, 0} \normalsize \dfrac{\cos^2{x}-\sin^2{x}-1}{\sqrt{x^2+1}-1}$

Math Doubts is a best place to learn mathematics and from basics to advanced scientific level for students, teachers and researchers. Know more