Adding . your increasing , so you add
Sin2x = 2sinxcosx;
cos2x = (cosx)^2 - (sinx)^2;
tan2x = (sin2x)/(cos2x);
cosx = 5/13 from formula (sinx)^2 + (cosx)^2 = 1;
=> sin2x = 120/169;
.................................
7.1 is ten times smaller than 71
Consists of two terms (A+B)
There will be eight marbles on the 9th line
