Answer:
Step-by-step explanation:
Let the three consecutive integers be x, x + 2 and x + 4
<u>So, the given condition is:</u>
x + x + 2 + x + 4 = 129
3x + 6 = 129
Subtract 6 to both sides
3x = 129 - 6
3x = 123
Divide 3 to both sides
x = 123/3
x = 41
<u>So, the integers are:</u>
x = 41
x + 2 = 41 + 2 = 43
x + 4 = 41 + 4 = 45
Hope this helped!
<h3>~AH1807</h3>
Just multiply 18 by 13 and divide by 9 i think
From all the steps below, we have been able to prove that; 1 - cot23° = 2/(1 - cot22°).
<h3>How to prove trigonometric functions?</h3>
We want to prove that 1 - cot23° = 2/(1 - cot22°).
We will prove it using the trigonometric expression
cot(22° + 23°) = cot45°
Using trigonometric identities, we can rewrite as;
(cot22° cot23° - 1)/(cot22° + cot23°) = 1
Cross multiply to get;
cot22° cot23° - 1 = cot22° + cot23°
Rearrange to get;
cot22° cot23° - 1 - cot22° - cot23° =0
⇒ cot22° cot23° - 1 - cot22° - cot23° + 2 =2
⇒ cot22° cot23° + 1 - cot22° - cot23° =2
⇒ cot22° cot23° - cot22° - cot23° + 1 = 2
⇒ cot22° (cot23° - 1) - 1 (cot23° - 1) = 2
⇒ (cot22° - 1) (cot23° - 1) = 2
Divide both sides by (cot23° - 1) to get;
cot23° - 1 = 2/(cot22° - 1)
⇒ 1 - cot23° = 2/(1 - cot22°).
Read more about trigonometric proof at; brainly.com/question/7331447
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Answer:
Step-by-step explanation:
Dividing both sides by -7.
There is only one solution that satisfies the equation.
I think the answer would be -12 but let me know if its right or wrong