Math Doubts


Math Doubts

Latest Math Topics

List of recently published mathematics tutorials.

Sep 16, 2018
Proof of Product Rule of Logarithms

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 derivative of logarithm

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

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(A+B) formula

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

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
trigonometry problems

Simplify trigonometric expression $\sin{(\theta+60^°)}$ $-$ $\cos{(\theta+30^°)}$

Sep 14, 2018
matrix problems

Find $\small 2A-3B$ if $\small A = \begin{bmatrix} 17 & 5 & 19 \\ 11 & 8 & 13 \end{bmatrix} $ and $\small B = \begin{bmatrix} 9 & 3 & 7 \\ 1 & 6 & 5 \end{bmatrix}$

Sep 12, 2018
limit problems

Evaluate $\displaystyle \large \lim_{x \,\to\, 0} \normalsize \dfrac{\sqrt{9+5x+4x^2}-3}{x}$

Sep 10, 2018
trigonometry problems

Find $\small \dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}$ if $\small \dfrac{x\cos{\theta}}{a}+\dfrac{y\sin{\theta}}{b}$ $\small = 1$ and $\small \dfrac{-x\sin{\theta}}{a}+\dfrac{y\cos{\theta}}{b} = 1$

Sep 7, 2018
algebra problems

If $x \,=\, \dfrac{6ab}{a+b}$, find the value of $\dfrac{x+3a}{x-3a}$ $+$ $\dfrac{x+3b}{x-3b}$

Sep 6, 2018
limit problems

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

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Math Problems

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.

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