Topic Details (Notes format)

How to Solve Logarithmic Inequalities

Subject: Mathematics

Book: Maths Mastery

Log inequalities like log(x) > 2 or log₂(x–1) ≤ 3 require understanding domain (x>0 for log base 10, x–1>0 for log₂) and exponential transformations. For log(x)>2, rewrite as x>10²=100. Solve carefully, checking intervals against log domain constraints. More complex expressions may involve combining log properties or adding constants. Log inequalities arise in pH ranges, decibel thresholds, or exponential growth constraints. Systematic approach ensures correct intervals, avoiding extraneous solutions from domain missteps.

Practice Questions

The sides of a triangle are 13 cm, 14 cm, and 15 cm. What is its area?

View Question

If a = 5 and b = 12, what is the length of the hypotenuse of a right triangle?

View Question

If x:y = 4:5 and y:z = 2:3, what is x:z?

View Question

If the sides of a triangle are 6 cm, 8 cm, and 10 cm, what is the area of the triangle?

View Question

The LCM of 12 and 15 is:

View Question

If the length of a rectangle is doubled and the width is halved, what is the change in area?

View Question

If x = 3 and y = 4, what is the value of x^2 + y^2?

View Question

What is the HCF of 48 and 180?

View Question

If a:b = 7:9 and b:c = 5:6, what is a:c?

View Question

A cone has a base radius of 7 cm and height of 24 cm. What is its volume?

View Question