This exercise is based on formulas for integration, before you start the exercise it is advised that you go through the formulas from the following link. Important integration formulas Q 1: Integrate Solution: Let We use the standard formula: Here , so: Final Answer: Q 2: Integrate Solution: Let Let Then: Using: Here, Substitute back […]
Class 12 NCERT Maths – Chapter 7, Exercise 7.7 Solutions Read More »
Q1. Find Solution:Recall, So, Therefore, Integrate, Final Answer: Q2. Find Solution:Use product-to-sum: So, Integrate, Final Answer: Q3. Find Solution:First, use product-to-sum for two cosines: So, Now, Now expand both terms: So, Now integrate term by term: Final Answer: Q4. Find Solution:Recall, So, Integrate, Using, So, We can also simplify this further Using, So, Substitute this
What are Partial Fractions? Steps for Using Partial Fractions Types of Partial Fractions Notes Tip:Whenever you see a rational function, first try to write it in one of the forms above. This will make integration much easier! Example of Partial Fraction Decomposition Express as a sum of partial fractions. Step 1: Identify the Form: The
Trigonometry has a wide set of identities that simplify calculations and problem-solving. Here are the most important formulae, grouped by type, for your reference. 1. Trigonometric Functions of Sum and Difference of Two Angles 2. Product to Sum (or Product to Series) Formula 3. Sum to Product (or Series to Product) Formulas 4. Double Angle
Question 1. Prove that the function f(x) = 5x – 3 is continuous at x = 0, at x = -3, and at x = 5. Solution: To prove that a function is continuous at a point , we need to show: This requires that: 1. is defined,2. The left-hand limit (LHL) and right-hand limit
Solve the following questions. The questions are designed to test your conceptual understanding of algebra at a Class 9 level. This sheet includes evaluation, factorization, simplification, and solving equations. 📘 Section A: Evaluate the Expression Q1. Evaluate: Q2. Evaluate: Q3. Evaluate: Q4. Evaluate: Q5. Evaluate: Q6. Evaluate: Q7. Evaluate: Q8. Evaluate: Q9. Evaluate: Q10. Evaluate:
🧮 Practice Sheet Level 2: Algebra (Based on Class 9 Concepts) Read More »
Solve the following questions. Show all necessary steps. Focus on evaluating, simplifying, and solving algebraic expressions and equations. 📘 Section A: Evaluate the Expression Q1. Evaluate: when Q2. Evaluate: when Q3. Evaluate: when Q4. Evaluate: when Q5. Evaluate: when Q6. Evaluate: when Q7. Evaluate: when Q8. Evaluate: when Q9. Evaluate: when Q10. Evaluate: when 📗
🧮 Practice Sheet Level 1: Algebra (Based on Class 6 to 8 Concepts) Read More »
Question 1: Evaluate Minors and Cofactors of the elements of the following determinant: (i) Solution: Element a₁₁ = 2 Element a₁₂ = -4 Element a₂₁ = 0 Element a₂₂ = 3 Summary Table: (ii) Solution: Element a₁₁ = a Element a₁₂ = c Element a₂₁ = b Element a₂₂ = d Summary Table: Question 2:
Class 12 NCERT Maths – Chapter 4 (Determinants) – Exercise 4.3 Solutions Read More »
Question 1: Find the area of the triangle with vertices at the points given: (i) Solution:Using the formula for the area of triangle: Substituting the points: Expanding: (ii) Solution:Substituting the points: Expanding: (iii) Solution:Substituting the points: Expanding: Question 2: Show that points are collinear. Solution:If points are collinear the area of a triangle formed by
Class 12 NCERT Maths – Chapter 4 (Determinants) – Exercise 4.2 Solutions Read More »
Evaluate the determinants in Exercises 1 and 2 Question 1: Solution: Question 2 (i) Solution: (ii) Solution: Question 3: If , Then show that Solution: Now, , Hence Proved Question 4: If , then show that |3A| = 27 |A| Solution: determinant of triangular matrix is product of diagonal elements: Now, This is an upper
Class 12 NCERT Maths – Chapter 4 (Determinants) – Exercise 4.1 Solutions Read More »
