Question

if cos A=3/5, then the value of cotA - tanA​

Answer 1

cotA=cosA/sinA=12/25,tanA=sinA/cosA=12/25

than, 12/25-12/25=0 Answer

Answer 2

Answer:

-7/12

Step-by-step explanation:

cos A =3/5

cos A = b/h

3/5=b/h

3=base

5=Hypotenous

hypotenuse ^2 =perpendicular ^2 +base^2

5^2=p^2+3^2

25=p^2+9

p^2=16

p=4

cot A=b /p=3/4

tanA =p/b=4/3

3/4-4/3=9-16/12=-7/12