In which districts of Uttar Pradesh, flowers are used to

Direction: Please solve the following expression and choose the closest option

Simplify the following trigonometric expression:
12 cos 68^o cosec 22^o - 3 cot 72^o cot 18^o

14.23² + 19.98% of 629.99 = ? × 6.99

[54.96 × √99.96 – {(25.02/6.84)% of 280.24}]/(3.03² × 19.87) = ?

66.05 × 17.95 – 38.99 × 18.12 = (60 + ?) × 6

12.02³ + 32.05 × 16.08 – 84.04% of 2400 = 56.06% of ?

What approximate value will replace the question mark (?) in the following?