Question

SOLVE ................

Answer 1

Answer:

Step-by-step explanation:

tan(90-Ф)

where AB=2 AC=4 BC=1

but tan(90-Ф)=cotФ

cotФ=adj/opp

=bc/ab

=1/2

Answer 2

Answer:

Use Pythagoras theorem

Step-by-step explanation: tan (90-teta)

Teta = 60*

Tan(90-60)*

Tan30*

= 1 / root3

Hence the ratio is 1:root 3 (_/3)