Question

if cosA=3/5 then find the value of secA-1​

Answer 1

Answer:

2/3

Step-by-step explanation:

cosA=3/5

and we know that

cosA=base/Hypotenuse

and secA= Hypotenuse/Base

now given

base=3

Hypotenuse =5

so Sec=5/3

and

secA-1=5/3-1=2/3