Question

if csec A=5/4 then find the value of A sin A and cos A​

Answer 1

Answer:

cosec A =h/p=5/4

b=?

h sq.=p sq. + b sq.

5sq. = 4sq. +b sq.

25=16+ b sq.

25-16=b sq.

9=b sq.

b=√9

b=3

sin A=p/H=5/4

cos A=b/h=3/4