A man travels 400 km in, partly by rail and partly by steamer. He spends 9 hours more time on steamer. If the velocity of the steamer is 30 km/hr and the
velocity of rail is 70 km/hr, how much distance does he cover by steamer?
1). 309 km
2). 371 km
3). 464 km
4). 556 km
1. If √(1 + cot2A) = x, then the value of x is?
2. What is the value of tan3A?
3. If $sin\theta - cos\theta$ = $\frac{1}{2}$ then value of $sin\theta + cos\theta$ is:
8. If $tan\theta $ = $\frac{7}{24}$, then what is the value of $Cosec\theta$?