What is the value of sin² 60° + cos²30°+ cot² 45° + sec² 60° – cosec² 30° + cos² 0°.

Directions:  In the following two equations questions numbered (I) and (II) are given. You have to solve both equations and
Give answer
(a) If x > y
(b) If x ≥ y
(c) If y > x
(d) If y ≥ x
(e) If x = y or no relation can be established

$$ {I.2x^{2}+x-28=0}$$
$$ {II. 2y^{2}-23y+56=0}$$

If secθ – tanθ = 1/3 what is secθ + tanθ?

A train crosses a platform in 30 seconds travelling with a speed of 60 km / h. If the length of the train be 200 metres, then the length ( in metres ) of the platform is 

If x tan45° cos30° = sin30° cos45°, then x is equal to - 

A man, a woman and a boy can complete a job in 3, 4 and 12 days respectively. How many boys must assist 1 man and 1 woman to complete the job in $$1\over4$$  of a day?

$$\sqrt{ {1-sinA\over1+sinA}}$$ is equal to ?