Question

If 3 tanA=4 then find sinA and cosA​

Answer 1

Answer:

sinA=4/5

cosA=3/5

Step-by-step explanation:

3 tan A = 4

therefore, tanA= 4/3

tan A = opposite side/ adjacent side

AC² = AB² + BC²

      = 4² + 3²

       = 16 + 9

         = 25

therefore AC = root25

                      = 5

sinA = opposite/ hypotenuse = 4/5

cosA = adjacent/hypotenuse = 3/5

Hope this helps :)