Question

if tan thita = 4 / 3 , find the value of cos ​

Answer 1

Answer:

Cos Ф = 3/5

Step-by-step explanation:

Tan Ф = 4/3

Tan Ф = P/B

P = 4 and B = 3 then by pyhtagoras Theorem, H = $\sqrt{4^{2} +3^{2} }$ = $\sqrt{16 + 9}$ = 5

Cos Ф = B/H

Cos Ф = 3/5

Answer 2

Answer:

3/5

Explanation:

tan Ф = $\frac{opposite}{adjacent}$

hypotenuse = $\sqrt{opposite^{2} + adjacent^{2} }$

                    = $\sqrt{4^{2} + 3^{2} }$

                    = $\sqrt{25}$

                    = 5

cos Ф = $\frac{adjacent}{hypotenuse}$

           = $\frac{3}{5}$