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NCERT Solutions for Class 10 Maths Chapter 9 Some Applications of Trigonometry Ex

These solutions for Sequences And Series are extremely popular among Class 10 students for Math Sequences And Series Solutions come handy for quickly completing your homework and preparing for exams.

Write the first five terms of the sequences whose n th term is. Therefore, the required terms are. Find the 17 th term in the following sequence whose n th term chapetr. Find the 9 th term in the following sequence whose n th term ncert solutions of class 10th maths chapter 9 result. Find the 20 th term in the following sequence whose n th term is.

Write the first five terms of the following sequence and obtain the corresponding series:. Hence, the first five terms of the sequence are.

Claes corresponding series is. Find the sum of all natural numbers lying between andwhich are multiples of 5. The natural numbers lying between andwhich are multiples of 5, are, � Thus, the sum of all natural numbers lying between andwhich are multiples of 5, is In an A. P, the first term is 2 and the sum of the first five terms is one-fourth of the next five terms. Show that 20 th term is � How many terms of the A. It is known that the general term of an A.

Thus, the sum of first pq terms of the A. If the sum of a certain number of resulh of the A. Find the last term. However, n cannot be equal to.

Find the sum to n terms of the A. If the sum of n terms of an A. It is known that. Find the ratio of their 18 th terms. Let a 1a 2and d 1d 2 be the first terms and the common difference of the first and second arithmetic progression respectively. If the sum of first p terms of an A. Let a and d be the first term and the common difference of the A.

Sum of the first p, q and r terms of an A. Prove. Let a 1 and d be the first term and the common difference of the A. The ratio of the sums of m and n terms of an A.

Let a and b be ncert solutions of class 10th maths chapter 9 result first term and the common difference of the A. Sum of n terms. If is the A. Between 1 and 31, m numbers have been inserted in such a way that the resulting sequence is an A.

Find the value of m. A man starts repaying a loan as first installment of Rs. If he increases the installment by Rs 5 ncert solutions of class 10th maths chapter 9 result month, what amount he will pay in the 30 th installment? The angles of the polygon will form an A. Find the 20 th and n th terms of the G.

The given G. Find the 12 th term of a G. The 4 th term of a G. Determine its 7 th term. Let the n th term of the given sequence be. Thus, the 9 th term of the given sequence is. For what values of x, the ncert solutions of class 10th maths chapter 9 result are in G. The given numbers are. Find the sum to n terms in the geometric progression.

The sum of first three terms of a G. Find the common ratio and the terms. Let be the first three terms of the G. Thus, the three terms of G. How many terms of G. Determine the first term, the common ratio and the sum to n terms of the G. Let the G. Also, ncert solutions of class 10th maths chapter 9 result is known that. Find a G. Find the sum of the products of the corresponding terms of the sequences 2, 4, 8, 16, 32 and32, 8, 2.

Here, 4, 2, 1, is a G. Show aolutions the products of the corresponding terms of the sequences form a G. P, and find the common ratio. Find four numbers forming a geometric ncert solutions of class 10th maths chapter 9 result in which third term is greater than the first term by 9, and the second term is greater than the 4 th by Thus, the first four numbers of the G.

If the terms of a G. If the first and the n th term of a G. Therefore, the G. Show that the ratio of the sum of first n terms of a G. Thus, the ratio of the sum of first n terms of a G. Find the value ,aths n so that may be the geometric mean between a and b. By the given condition. The sum of two numbers is 6 times their geometric mean, show that numbers are in the ratio. Thus, the required ratio is.

It is given that A and G are A. Let these two positive numbers be a and b. Thus, the two numbers are. The number of bacteria in a certain culture doubles every hour. If there were 30 bacteria present in the culture originally, how many bacteria will be present at the end of 2 nd hour, 4 th hour and n th hour?

It is given that the number of bacteria doubles every hour. Therefore, the number of bacteria after every hour will form a G. Thus, number of bacteria at the end of n th hour will be 30 2 n.

Find the sum to n terms of the series. The vlass series is. Clqss the sum to n terms of the series whose n th terms is given by 2 n � 1 2. Let the three numbers in A. It is known that the ncert solutions of class 10th maths chapter 9 result th term of 10rh A. If f is a function satisfying solutionz thatfind the value of n. It is given that. The sum of some terms of G. Find the last term and the number of terms.

The first term of a G. The sum of the third term and fifth term is Find the common ratio of G. The claxs of three numbers in G. If we subtract 1, 7, 21 from these numbers in that order, we obtain an arithmetic progression.

Find the numbers. Whenthe three numbers in G. If the sum of all the terms is 5 times the sum of terms occupying odd places, then find its common ratio.

The angle of elevation from one point to the top of the tower and angle of elevation from another point to the top of the tower are given. The angle of elevation and the length of the rope are given. These solved examples based on the terms line of sight, angle of elevation and angle of depression will help you to understand the concepts thoroughly. What should be the length of the slide in each case? Chapter 9 - Some Applications of Trigonometry. We have to calculate the time taken by the car to reach the foot of the tower Cos C.

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