Question

13. The angle of rotation of axes to remove xy term in the equation 2xsquare+ 3xy + 2ysquare = 5 is
1) π/6
2) /4
3) π/3
4)π/2

14. The angle of rotation of axes to remove xy term in 2xy +a square=0 is
1) π/6
2) π/4
3)π/3
4)π/2​

Answer 1

Answer:

OP BRO OP BRO

Step-by-step explanation:

Answer 2

Step-by-step explanation:

( 13 ) : ( 2 ) /4

( 14 ) : ( 3 ) π/3

I hope my answer is a right and your help for me.