Q) For the following APs, write the first term and the common difference: (iv) 0.6, 1.7, 2.8, 3.9,… Ans: Here we are given AP and we need to find the first term a and common difference d. Now, first term of the AP, a1 = 0.6 (by observation) Further we can see that a2 = 1.7 […]
5.1.3 (iv) For the following APs, write the first term and the common difference: Read More »
Q) For the following APs, write the first term and the common difference: (iii) ,…. Ans: Here we are given AP and we need to find the first term a and common difference d. Now, first term of the AP, (by observation) Further we can see that and Common difference is the difference between
Q) For the following APs, write the first term and the common difference: (ii) – 5, – 1, 3, 7…. Ans: Here we are given AP and we need to find the first term a and common difference d. Now, first term of the AP, a1 = – 5 (by observation) Further we can see
Q) Write first four terms of the A.P. when the first term a and the common difference d are given as follows (v) a = – 1.25, d = – 0.25 Ans: Since we need to form AP consisting of first 4 terms, let’s start from formula for nth term. The nth term of an
Q) Write first four terms of the A.P. when the first term a and the common difference d are given as follows (iv) a = – 1, d = 1 / 2 Ans: Since we need to form AP consisting of first 4 terms, let’s start from formula for nth term. The nth term of
Q) Write first four terms of the A.P. when the first term a and the common difference d are given as follows (iii) a = 4, d = − 3 Ans: Since we need to form AP consisting of first 4 terms, let’s start from formula for nth term. The nth term of an AP,
Q) In which of the following situations does the list of numbers involved make an arithmetic progression and why? (iv) The amount of money in the account every year, when Rs. 10,000 is deposited at compound interest at 8% per annum.. Ans: Let’s start from making a sequence of the air amount in the cylinder
Q) In which of the following situations does the list of numbers involved make an arithmetic progression and why? (iii) The cost of digging a well after every metre of digging, when it costs Rs. 150 for the first metre and rises by Rs. 50 for each subsequent metre. Ans: Let’s first start making a sequence
Q) In which of the following situations does the list of numbers involved make an arithmetic progression and why? (ii) The amount of air present in a cylinder when a vacuum pump removes 1/4 of the air remaining in the cylinder at a time. Ans: Let’s start from making a sequence of the air amount in the
Q) In which of the following situations does the list of numbers involved make an arithmetic progression and why? (i) The taxi fare after each km when the fare is Rs 15 for the first km and Rs. 8 for each additional km. Ans: Let’s first start making a sequence and then check if the sequence