Question

if cosA =4/5then value of Tan A is​

Answer 1

Answer:

$\cos(a) = \frac{4}{5}$

${ \sin }^{2} a + { \cos }^{2} a = 1$

therefore

${ \sin }^{2}a = 1 - \frac{16}{25}$

therefore

$\sin(a ) = \frac{3}{5}$

now we know that

$\frac{ \sin(a) }{ \cos(a) } = \tan(a)$

therefore

$\tan(a) = \frac{3}{4}$

thanks

Answer 2

Your answer is in the above attachment.

HOPE IT IS HELPFUL.....