Difference Between Well-Defined and Not Well-Defined Collections In Mathematics, a collection of objects is called a set only when it is well-defined. This chapter helps Class 11 students clearly understand the difference between well-defined and not well-defined collections using simple examples. Watch Video Explanation Class 11 | Sets – Chapter 1 | Definition, Uses & Well-Defined vs Not Well-Defined Sets…
Category: Uncategorized
Why Trigonometric Ratios Never Change for the Same Angle | Class 10
The values of the trigonometric ratios of an angle do not vary with the lengths of the sides of the triangle, if the angle remains the same. 1) What does this statement mean? When we calculate sine, cosine, or tangent of an angle in a right-angled triangle, we use the sides of the triangle. For example, in a right…
If sin A = 1/2 , find all the Trigonometric Ratios – Class 10
In this blog, let’s understand how to find all six trigonometric ratios when sin A = 1/2 using Triangle and Identity method 1st Method : Triangle Method We are given: sin A = 1/2 By definition, sin A = Perpendicular / Hypotenuse So, we can assume: Perpendicular (P) = 1 Hypotenuse (H) = 2 We assume the simplest…
📚 Learn to Find All Trigonometric Ratios in 2 Minutes! Sin θ, Cos θ, Tan θ, Cosec θ, Sec θ, Cot θ | Class 10
Many students find this chapter confusing at first — but once you crack the Pandit Badri Prasad Trick, trust me, it becomes one of the easiest scoring topics. ✅ The 3 Sides of a Right-Angle Triangle Before jumping into ratios, know the 3 sides: 1️⃣ Perpendicular (Opposite Side) — side opposite to the given angle (except the…