Posted inClass 9th math NCERT
NCERT, Class 9, Lines and Angles , Chapter–6, Exercise-6.1– Important questions
Q. 1. In the figure, lines AB and CD intersect at O. If angle AOC + angle BOE = 70 degree and angle BOD = 40 degree, find angle BOE…
Posted inClass 10th math NCERT Introduction to Trigonometry Chapter–8 Introduction to Trigonometry Exercise 8.1
NCERT, Class 10, Introduction to Trigonometry, Chapter–8, Exercise-8.1 – Perfect explanation of every question
Q.1. In triangle ABC, right-angled at B, AB=24cm, BC=7cm. Determine: (i) SinA, CosA, (ii) SinC, CosC; Q.2. In the figure, find tanP – cotR.; Q.3. If sin A=3/4, calculate cos…
Posted inArithmetic Progressions Chapter–5 Arithmetic Progressions Exercise 5.4 Class 10th math NCERT
NCERT, Class 10, Arithmetic Progressions, Chapter–5, Exercise-5.4 – Exact explanation of each question
Q. 1. Which term of the AP: 121, 117, 113,…., is its first negative term? [Hint: Find n for an < 0]; Q. 2. The sum of the third and…
Posted inClass 10th math NCERT Pair of Linear Equations in Two Variables chapter -3 Pair of Linear Equations in Two Variables exercise 3.1
NCERT, Class 10, Pair of Linear Equations in Two Variables, Chapter–3, Exercise-3.1 – Stepwise solution with proper graph of each question
Q.1. Form the pair of linear equations in the following problems, and find their solutions graphically. (i) 10 students of class X took part in a Mathematics quiz. If the…