Verify:x³ y³=(x y)(x²-xy y²)
Question
Maths
March 10, 2018, 8:28 a.m.
Answer
A class has 175 students. The following description gives the number of students studing one or more of the subjects in the class Mathematics 100,Physics 70,Chemistry 46,Mathematics and Physics 30, Mathematics and Chemistry 28, Physics and Chemistry 23, Mathematics,Physics and Chemistry 18. Find (i) How many students enrolled in mathematics only ? (ii) How many enrolled in exactly two subjects ? (iii)How many enrolled in atleast one subject? (iv) The number of students who have not offered any of these subjects.
A ladder of length 9m touches the wall at a height of 4.5m. Find the angle made by the ladder with the horizontal.
Maths
March 10, 2018, 12:45 a.m.
Answer
O is a center of the circle of radius if o p is perpendicular to A B parallel C D and AB is parallel to CD and the other side of the circle of radius if o
for the following data draw a histogram and a frequency polygon 0-20 is 13;20-30 is 15; 30-50 is 20; 50-60 is 18 ;60-80 is 10;80-100 is 14
Let A={1,2,3,4,5,6,7}, then the number of symmetric relation they can be define on A is
