Question

9. In a triangle ABC, angle A = 90,
AB = 4cm, AC = 3cm, then cosecB​

Answer 1

Step-by-step explanation:

5/3 is your answer.

I hope this answer will help you!

Answer 2

Answer:

5/3

Step-by-step explanation:

CosecB= H/O

There fore AB= ADJACENT SIDE OF A RIGHT ANGLED TRIANGLE

AC= OPPOSITE SIDE OF A RIGHT ANGLED TRIANGLE

AB= HYPOTENUSE OF A RIGHT ANGLED TRIANGLE

H*=AB*+AC*

H*= 4*+3*

= 16+9

= ¯*25

= 5

THERE FORE CosecB= 5/3

HERE *=2,¯*= ROOT