Question

If (sec theta-1)(sec theta+1)=¹/³then cos
theta

Answer 1

Answer:

$\frac{ \sqrt{3} }{2}$

Step-by-step explanation:

Here,

$( \sec(theta) - 1)( \sec(theta) + 1) = { \sec(theta) }^{2} - 1$

then....

${ \sec(theta) }^{2} = 1 + \frac{1}{3}$

then.....