In a class of 35 people, 20 people play chess and 18 people play tennis whereas 10 people play both. Accordingly, what is the tota...
-2/3(4/5+-8/15)=(-2/3*4/5)+(-2/3*-8/15)
Xyz is a right angled triangle at y, if yz =2xy,
Find the value of each of :tan z, tan x, cos z, cos x
3
2
xy
5xy
2x
49 5/6 x 3
=
3ab + 9a
3x^2+11x-20
574 ÷ 15 =
15 $\sqrt{574}$