Question

solve this question
ICSE bord
Class 9​

Answer 1

Step-by-step explanation:

AB=2

BC=1

AC^2= AB^2+BC^2

= 2^2+1^2

=4+1

= 5

AC= √5

sin@= 2/√5

tan@=2/1

sin^2@+tan^2@

= 4/5+ 4/1

= (4+20) /5

=24/5