Question

If cosA = 3/5 find the value of Sec A - 1​

Answer 1

Answer:

Given

CosA=3/5

SecA=5/3 (ulta of cos)

so

5/3-1

is your answer and thanks for your like

Answer 2

Answer:

Step-by-step explanation:

$\large\tt \qquad \qquad cos(A)= \dfrac{3}{5}$

$\large\tt \qquad \qquad cos(A) =\dfrac{adjacent\:side}{hypotenuse}$

$\large\rm \qquad \qquad adjacent\: side=3$

$\large\rm \qquad \qquad hypotenuse=5$

$\large\tt \qquad \qquad sec(A)= \dfrac{hypotenuse}{adjacent\:side}$

$\large\tt \qquad \qquad sec(A)= \dfrac{5}{3}$

$\large\rm \qquad \qquad sec(A)-1= \dfrac{5}{3}-1$

$\large\rm \qquad \qquad = \dfrac{5}{3}-\dfrac{1}{1}$

$\large\rm \qquad \qquad = \dfrac{5-3}{3}$

$\large\rm \qquad \qquad = \dfrac{2}{3}$