4. is correct
5. A is correct
6. B is correct
Answer:
The exact value of cotФ is
Step-by-step explanation:
Given as:
The value of cosec Ф =
Let the value of cotФ = x
Now, According to question
∵ sinФ = .....1
Put the value of cosec Ф = in eq 1
i.e sinФ =
Or, sinФ =
<u>Again</u>
∵ cosФ =
So, cosФ =
Or, cosФ =
Or, cosФ =
∴ cosФ =
<u>Again</u>
we know that cotФ =
So, cotФ =
Or, cotФ =
As according to question sinФ lies in third quadrant
So, cotФ =
Hence, The exact value of cotФ is . Answer
Answer:
the answer is 486 cubic feet. I hope it helps!
Answer:
1260
Step-by-step explanation:
45 times 7 equals 315
315 times 4 equals 1260
Answer:
42 hours
Step-by-step explanation:
1 pound = 3,500
3,500 × 3 = 10,500
1 hour = 250
10,500 ÷ 250 = 42
42 hours