Algebra All formula Class 6 To 10 Competition exam

Class 10 polynomial

The algebraic sum of deviations of 10 observations measured from 15 is 7 The mean is

In a class there are 12 boys and 7 girls. The teacher wants to select either a boy or a girl to represent the class in a competition. In how many ways can the teacher make this selection.

Write the structural formulae of all isomers of hexane.

Let u be universal set of all the students of Class XI of a coeducational school and A be the set of all girls in Class XI. Find A^(prime) .

Draw all possible structural formulae of compound from their molecular formula given below. C_3H_8 ​