What is the length of the chord of a unit circle which subtends an angle θ at the centre ?
C.
We have, chord AB of unit circle subtends an angle at the centre.
Here radius is 1 because of unit circle.
In
OA = OB = 1 and AC = CB [ if from a centre a perpendicular is drawn to the chord, then a chord is divided by means of congruency.]
When all the sides of triangle are same then angles are also same
Consider the following statements :
1) cos(θ) + sec(θ) can never be equal to 1.5
2) tan(θ) + cot(θ) can never be less than 2
Which of the above statements is/are correct ?
1 only
2 only
Both 1 and 2
Neither 1 nor 2