Question

राइट ऑल द नंबर लेसन इन व्हिच आर द कॉमन मल्टीपल ऑफ 5 एंड 6राइट ऑल द नंबर 90 व्हिच आर द कॉमन मल्टीपल ऑफ 5 एंड 6 ​

Answer 1

Step-by-step explanation:

Fact: The values sin 30 and cos 60 are equal.

Sin 30 = Cos 60 = ½

And

Cosec 30 = 1/Sin 30

Cosec 30 = 1/(½)

Cosec 30 = 2

Answer 2

Step-by-step explanation:

Two inlet pipes A and B Can fill an empty Cistern in 4 hours and 8 hours, respectively.If both are opened together in the empty cistern, How much time will the take to fill it completely.