goals

Find period of $$\dfrac{{1 + \sin x}}{{\cos x\left( {1 + cosecx} \right)}}$$

The diagram shows a triangle ABC.

Mark the point of intersection of the two loci with the letter D.

Mark the point of intersection of the two loci with the letter D.

Give an example of a relation which is symmetric only.

Show that the set G of all positive rationals forms a group the compositions * defined by $$a*b = \frac{{ab}}{3}$$ for all $$a,b \in G$$

The number of one-one and onto functions that can be defined from { 1,2,3,4 } onto set is 24 then n ( B ) is