In an A.P., if common differance is 2, sum to n term is 49,7th term is 13, then n=

ex 3.1 solution 

Find ques from 21to 25 of chapter3 ,ex.3.3 in class 11 maths N.C.E.R.T.

1. Mathematics.pdf

Ho does the minus ign comes up?? For example.. 13/-1. The answer will come -13... Why????

Find the area of triangle whose vertices are( 1, 0)( 6,0 )(4,3)

class11 math ex.3

1. Science

Find mean deviation about mean and median for the given sample 50, 46, 32, 36, 43, 49, 39, 42, 33, 38, 32 Question: 2 Marks: 5 Calculate the geometric mean and harmonic mean of 40, 35, 30 and 25.