In the following sentence, identify the part which contains an error.
The wayfarer/ enquired from me / where / I lived
          a                 b               c              d
The correct answer is C
If θ is a positive acute angle and cos² θ + cosâ´θ = 1, then the value of tan²θ + tanâ´θ is?
Evaluate, tan 17°  tan 32°  + tan 32°  tan 41° + tan 41°  tan 17°  =?
Find the value of `1/2`  cosec 10  - `2/(cosec 70)`  ?
If 2y . cos θ - x . sin θ = 0 and 2x . sec θ - y . cosec θ = 3, what is the value of x² + 4y²?
cos A (sec A – cos A) (cot A + tan A) = ?
If √3 tan 2θ – 3 = 0, then find the value of tanθ secθ – cosθ where 0 < θ < 90°
The maximum value of 15 sin2 θ + 8 cos2 θ is