Question

Find the angle
between the straight lines
represented by 2x^2+5xy+2y^2-5x-7y+3=0​

Answer 1

Step-by-step explanation:

2x

2

+5xy+3y

2

+7y+4=0

Comparing above eqn. with general eqn. of pair of straight line

ax

2

+2hxy+by

2

+2gx+2fy+c=0

We get a=2, h=

2

5

, b=3, g=0, f=

2

7

and c=4

Angle b/w pair of straight lines is

θ=tan

−1

[

a+b

2

h

2

−ab

]

tan

−1

m=tan

−1

⎣

⎢

⎢

⎢

⎡

2+3

2

4

25

−6

⎦

Answer 2

Answer:

If u make me Brainliest

Your Mom-Dad will live 100 years and I will also answer ur question if u will make me Brainliest