Question

If is acute angle between the lines given by 3

− +

= 0 and

tan = ½, find b​

Answer 1

Answer:

_7+44(3(+_-_;3;_!&(

jenfbdbszbcnnfnfdi

tutueb+467(8#

Answer 2

Answer:

Angle between two lines θ is given by

θ=tan

−1

∣

∣

∣

∣

∣

∣

1+m

1

m

2

m

1

−m

2

∣

∣

∣

∣

∣

∣

where m

1

=−3 is the slope of one line.

m

2

=

2

−1

is the slope of other line.

tanθ=

∣

∣

∣

∣

∣

1+

2

3

−3+

2

1

∣

∣

∣

∣

∣

=1

⇒θ=45

0