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kumpel [21]
3 years ago
12

........ help ASAP please....

Mathematics
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

See below

Step-by-step explanation:

In the second step there should be (1 - cot x) instead of (1 + cot x)

(1 + tan x) [1 + cot(-x)]

= (1 + tan x) (1 - cot x)

= 1 - cot x + tan x - tan x cot x

= 1 - cot x + tan x - 1

= tan x - cot x

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8 0
3 years ago
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The perimeter of a rectangle is 37. The length is 1 less than 12 times the width. What is the length and width of the rectangle
iren [92.7K]
Width = W
Length = 12W - 1
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In the perimeter equation substitute the length equation in for L to get the equation in terms of W
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Distribute
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3 0
3 years ago
Is 3x + 5 = 3x - 5 one solution or no solution
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one solution

Step-by-step explanation:

7 0
3 years ago
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PLEASE HELP!! URGENT
tatiyna

Answer:

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Step-by-step explanation:

82+75+x=180

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4 0
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