Prove that cube of any +ve integer is 9m, 9m+1 or 9m+8 where q is some integer
CHAPTER - 5
find the nth term of the A.P. 2, 5, 8……………, find its 54 Th term
What are an A.P. and a term?
Find the sum of first n odd natural numbers.
Find sum of first 22 terms of an A.P. in which d=22 and a22=149.
A man is employed to count Rs 10710.He counts @ Rs 180/minute for half an hour. After it he counts @Rs 3 less than the preceding minute. What time he had taken to count the entire money?
CHAPTER - 7{Theorems only}
Thale’s theorem.
If 2 triangles ABC and PQR are similar then prove that ratios of their areas are in ratio of squares of their corresponding sides.
