### Math Assignment Class XI Ch-10 | Conic Sections

ASSIGNMENT ON CONIC SECTIONs CH-10, CLASS-11 Important questions other than NCERT Book, useful for the examination point of view useful for DAV and CBSE board with solution hints.

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**Basic points of Arithmetic Progression **

**Ans [4, 10, 16, 22 ...] **

**Ans [74 ^{th}]**

**Ans [ 71 ^{st} term]**

**Ans [53 ^{rd} ] **

**Ans [a = 9, d = - 3] **

**Ans [2, 7, 12......]**

** Ans [130]**

**Ans [6n + 3]**

**Ans [1188]**

**Ans [18 or 19]**

**Ans [6534]**

**Ans [6000]**

**Ans [153]**

**Ans [330]**

**Ans [17696]**

**Ans [-14, -11, -8]**

**Ans [-10]**

** Ans [94 terms , sum= 19035]**

_{ }Ans_{ }[90 : 97]

**Ans [99090]**

**Ans [6, 9, 12, 15]**

**Ans [3, 7, 11]**

**Ans [2, 4, 6, 8]**

**Ans [75, 85, 95, 105]**

**Ans [50500]**

**Ans [20 ^{th} , 860]**

** Ans [1, -1, -3, -5]**

**Ans[18]**

**Ans[40 ^{o}, 60^{o} and 80^{o}]**

**Answer:
n=16, d=8/3**

Question 53: The ratio of the 10

Answer: a =
2 and d = 2

Question 54: The sum of first and 8

Answer a = 2
or 30, d = 4 or -4, Sn = 800 or -160

Question 55: An A.P. of 40 terms, the sum of first 9 terms is 153 and the sum of last 6 terms is 687. Determine the first term and common difference of A.P. Also, find the sum of all the terms of the A.P.

Answer: a
=5, d = 3, S_{40} = 2540

Question 56: In an A.P., the sum of three consecutive terms is 24 and the sum of their aquares is 194. Find the numbers. Answer: Numbers are 7, 8, 9 or 9, 8, 7

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E-LESSON PLANNING FOR MATHEMATICS TEACHER CLASS 10TH lesson plan for maths class X cbse, lesson plans for mathematics teachers, Method to write lesson plan for maths class 10, lesson plan for maths class X, lesson plan for mathematics grade X, lesson plan for maths teacher in B.Ed. RESOURCE CENTRE MATHEMATICS LESSON PLAN (Mathematics) : CLASS 10 th Techniques of Making E-Lesson Plan : Click Here Click Here For Essential Components of Making Lesson Plan Chapter 1 : Number System

Theorems on Parallelograms Ch-8 Class-IX Explanation of all theorems on Parallelograms chapter 8 class IX, Theorem 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 8.10, Mid point theorem and its converse. All theorems of chapter 8 class IX. Theorem 8.1: Prove that a diagonal of a parallelogram divides it into two congruent triangles. Given: In Parallelogram ABCD, AC is the diagonal To Prove: △ACD ≌ △ABC Proof: In △ACD and △ABC, ∠1 = ∠2 ......... (Alternate angles ∠3 = ∠4 .......... (Alternate interior angles AC = AC ........ (Common Sides ⇒ By ASA ≌ rule △ACD ≌ △ABC Theorem 8.2: In a parallelogram, opposite sides are equal. Given: ABCD is a parallelogram To Prove : AB = CD and BC = AD Proof: In △ ACD and △ ABC, ∠ 1 = ∠ 2 ......... (Alternate angles ∠ 3 = ∠ 4 .......... (Alternate interior angles AC = AC ........ (Common Sides ⇒ By ASA ≌ rule △ ACD ≌ △ ABC ⇒ AB = CD and BC = AD ….. By CPCT Theorem

E- LESSON PLAN SUBJECT MATHEMATICS CLASS 10 lesson plan for maths class 10 chapter 8 & 9 Trigonometry and application of trigonometry, lesson plans for mathematics teachers, Method to write lesson plan for maths class 10, lesson plan for maths in B.Ed. TEACHER : DINESH KUMAR SCHOOL : RMB DAV CENTENARY PUBLIC SCHOOL NAWANSHAHR SUBJECT : MATHEMATICS CLASS : X STANDARD BOARD : CBSE LESSON TOPIC / TITLE : CHAPTER 8 & 9: Trigonometry and applications of trigonometry ESTIMATED DURATION: This lesson is divided into eight modules and it is completed in 15 class meetings. PRE- REQUISITE KNOWLEDGE:- Concept of right angled triangle, Pythagoras theorem, Algebraic Identities.

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