
Ex 4.2 Sequences & Series | Complete Solutions | Class 11 Mathematics | NBF & Federal Board
Ex 4.2 | Sequences & Series | Complete Solutions | Mathematics Class 11 | NBF & Federal Board Master Class 11 Mathematics with our complete solutions for Exercise 4.2 on Sequences & Series. Tailored for NBF and Federal Board students, this video covers arithmetic sequences, their terms, arithmetic means, and practical applications. Navigate easily with timestamps and enhance your understanding! Watch the complete series of lectures for Sequence and series by exploring our playlist link here: • Sequences & Series - Complete Chapter... Timestamps for Easy Navigation: 00:00:00 - Q1: Find the first four terms of each arithmetic sequence (Part i-vi). 00:12:35 - Q2: Find the next three terms of each arithmetic sequence (Part i-iv). 00:16:20 - Q3: Find the 11th term of the arithmetic sequence. 00:17:45 - Q4: The 3rd term is 14 and the 9th term is -1. Find the first four terms. 00:22:50 - Q5: For a17 , a28=−40 and =−73, find d, and the first five terms. 00:27:20 - Q6: The 5th term is 19, and the 11th term is 43. Find the 1st and 87th terms. 00:30:35 - Q7: Which term of the sequence −6,−2,2,… is 70? 00:33:30 - Q8: Identify the specific term of the sequence. 00:36:10 - Q9: If 1/a,b,1/c are in A.P., show the common difference is (a−c)/2ac. 00:39:55 - Q10: During free fall, a skydiver falls 16 ft (1st sec), 48 ft (2nd sec), and 80 ft (3rd sec). How far will they fall in the 8th second? 00:42:40 - Q11: A person saves Rs. 1000 (Aug 1), Rs. 3000 (Aug 2), and Rs. 5000 (Aug 3). How much is saved by Aug 20? 00:44:40 - Q12: A gardener plants 35 in the 1st row, 31 in the 2nd row, 27 in the 3rd row, etc. How many plants will be in the 8th row? 00:47:15 - Q13: Find the arithmetic mean (A.M.) for various parts (Part i-iv). 00:52:05 - Q14: Find b if 10 is the A.M. between b and 20. 00:53:25 - Q15: Find x and y if 2 and 13 are two A.M.s between them. 00:56:20 - Q16: Find two A.M.s between 5 and 17. 00:59:25 - Q17: Find three A.M.s between 2 and -18. keywords: Sequences and Series Class 11 Sequence and Series Exercise 4.2 Arithmetic Sequence Class 11 Chapter 4 Sequences and Series Class 11 Mathematics NBF Exercise 4.2 Sequence and Series Class 11 Complete Solutions Sequences and Series NBF Class 11 Math Solutions Sequence and Series Easy Tricks Sequences and Series All Solved Questions National Book Foundation Class 11 Math Unit 4 Sequences and Series Class 11 Chapter Four Sequence and Series Class 11 Arithmetic Mean Class 11 Class 11 Maths Federal Board Sequence and Series Tricks for Exams Class 11 Math National Book Foundation How to Solve Sequences and Series Class 11 Federal Board Sequences and Series Exercise 4.2 Math Class 11 Explained NBF Mathematics Class 11 Chapter 4 Solved Examples Sequences and Series Learn Arithmetic Sequences Class 11 #SequencesAndSeriesClass11 #SequenceAndSeriesExercise4.2 #ArithmeticSequenceClass11 #Chapter4SequencesAndSeries #Class11MathematicsNBF #Exercise4_2SequenceAndSeriesClass11 #CompleteSolutionsSequencesAndSeries #NBFClass11MathSolutions #SequenceAndSeriesEasyTricks #SequencesAndSeriesAllSolvedQuestions #NationalBookFoundationClass11Math #Unit4SequencesAndSeriesClass11 #ChapterFourSequenceAndSeriesClass11 #ArithmeticMeanClass11 #Class11MathsFederalBoard #SequenceAndSeriesTricksForExams #Class11MathNationalBookFoundation #HowToSolveSequencesAndSeriesClass11 #FederalBoardSequencesAndSeries #Exercise4_2MathClass11Explained #NBFMathematicsClass11Chapter4 #SolvedExamplesSequencesAndSeries #LearnArithmeticSequencesClass11