In right angle triangle ABC 8 cm,15 cm,17 cm are the length of AB,BC,CA respectively. Then find out sin A,cosa andtanA
If (1+3+5......to nth term)/(2+4+6.......to nth term) =0.95, find n ?
In a school there are 20 teachers eiter teach english or maths. out of these 12teachers teach english only and five teachers teach both english and maths. find how many teachers teach only maths.