Question

If 4cot A =3 find sinA--1 upon sin A+1

Answer 1

Answer:

hope it helps you and please mark it as brainlist answer

Answer 2

Answer:

sin A - 1= -1/5, sinA + 1 = 9/5

Step-by-step explanation:

4cotA=3

Therefore, cotA= 3/4

cot A= base/perpendicular

base= 3, perpendicular= 4, hypotenuse= 5 (by pythogoras theorem)

Now,

Sin= perpendicular/hypotenuse

So, SinA - 1= 4/5 - 1

                  = 4-5/5

                  = -1/5

Sin A + 1= 4/5 + 1

             = 4+5/5

             = 9/5