Question

tan square theta upon sec theta +1 - sec theta is equal to
A- 1
B - (- 1)
C- 0
D- none of these​

Answer 1

Answer:

During a process, the zeolite bed was exhausted after 10.5 hours and 425 litres of 0.6 N sodium chloride solution was required to restart the function of the zeolite process. Work out the hardness of hard water in ppm.

Step-by-step explanation:

D )NONE OF THESE

Answer 2

$\frac{ \tan ^{2} θ }{ \secθ } + 1 - \secθ = 0$