Question

if a and b are unit vectors |a x b| =1 then angle between a and b

​

Answer 1

Answer:

We have,

∣

∣

∣

∣

a

∣

∣

∣

∣

=1

∣

∣

∣

∣

b

∣

∣

∣

∣

=1

∣

∣

∣

∣

a

−

2

b

∣

∣

∣

∣

=1

∣

∣

∣

∣

a

−

2

b

∣

∣

∣

∣

2

=1

(

a

−

2

b

).(

a

−

2

b

)=1

∣

∣

∣

∣

a

∣

∣

∣

∣

2

+2

∣

∣

∣

∣

b

∣

∣

∣

∣

2

−2

2

a

.

b

=1

2

1

=

∣

∣

∣

∣

a

∣

∣

∣

∣

∣

∣

∣

∣

b

∣

∣

∣

∣

cosθ

cosθ=

2

1

θ=

4

π

=45

0

Step-by-step explanation:

mark me branliest