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Virty [35]
3 years ago
10

Prove the identity with steps. sin (x-y)/cos x sin y = tan x cot y -1​

Mathematics
1 answer:
Ad libitum [116K]3 years ago
5 0

Step-by-step explanation:

sin(x−y) / (cos x sin y)

Use angle sum/difference formula:

(sin x cos y − sin y cos x) / (cos x sin y)

Divide:

(sin x cos y) / (cos x sin y) − 1

Rearrange:

(sin x / cos x) (cos y / sin y) − 1

Simplify:

tan x cot y − 1

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Your balance sheet shows $6,400 worth of inventory in hair products. Items are recorded in inventory at cost, and the average co
andreyandreev [35.5K]

Answer:

Units of hair products = 2634 units

Step-by-step explanation:

Given that:

Worth of products in the inventory = $6400

Average cost per unit = $2.43

Number of units = \frac{Total\ worth}{Per\ unit\ cost}

Number of units = \frac{6400}{2.43}

Number of units = 2633.73

Rounding off to nearest whole number = 2634 units

Hence,

Units of hair products = 2634 units

4 0
3 years ago
Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the trian
Elena-2011 [213]

The answer is 15,183.77 feet.

5 0
3 years ago
Two forest service watchtowers spot a fire in the distance. The fire is 27 miles from Tower 2. About how far apart are the two w
Reptile [31]
Given  that the two watchtowers spotted fire in the distance and watch tower 2 was 27 miles from the fire. Assuming that the fire is in the middle of both watch towers, then the distance between the two watch towers will be given by:
distance=[distance of fire from watch tower 1]+[distance of fire from watch tower 2]
=27+27
=53 miles
8 0
3 years ago
For the expression, combine like terms and write an equivalent expression 3 points
Simora [160]

Answer:

5+7x

Step-by-step explanation:

1/2(6-4x) +2 +9x

3-2x+2+9x

5+7x

4 0
3 years ago
What is the range of the function represented by these ordered pairs?
Svetlanka [38]
The range will be all ur y values...just as the domain is all the x values

so ur range is {5,6 }...notice that even though they repeat, u only have to list them once
3 0
3 years ago
Read 2 more answers
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