Evaluate :

cosec² 57° - tan² 33° + cos 44° cosec 46° - $\sqrt{2}$ cos 45° - tan² 60°

If 2 sin θ = $\sqrt{3}$, then :

1. 2 cos θ + 1 = 0

2. 1 - sin θ = 0

3. cos θ = $\sqrt{3}$

4. 2 cos θ = 1

sin θ = 0.5 implies tan θ + cot θ is equal to :

1. 2 : $\sqrt{3}$

2. $\sqrt{3}$ : 4

3. 4 : $\sqrt{3}$

4. $\sqrt{3}$ : 2

If cos 63° 36' = 0.4446, the value of sin 26° 24' is :

1. 1

2. 1 + 0.4446

3. 0.4446

4. 1 - 0.4446