Question

if for real values of x .cos theta=x+1/x then

Answer 1

Answer:

If for real values of x, cosθ=x-1x, then (a)θ is an acute angle (b)θ is an right angle (c)θ is an obtuse angle (d)no value of θ is possible.

Explanation:

Hope it helps you and please mark it as brainlist...