PLEASE HELP I REALLY NEED THISSS
2 answers:
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Answer:
Step-by-step explanation:
<em>START:</em> 4x + 10 = - 26 ⇔ 4x = - 36 ⇔ <em>x = - 9</em>
x + 13 = 9 ⇔
x = - 4 ⇔ <em>x = 8</em>
x - 9 = 27 ⇔
x = 36 ⇔ <em>x = 48</em>
9 - 2x = 35 2x = - 35 + 9 ⇔ <em>x = - 13</em>
x + 15 = 17 ⇔
x = 2 ⇔ <em>x = 3</em>
- 5x - 10 = 10 ⇔ 5x = - 20 ⇔ <em>x = - 4</em>
Now is your turn. You can do it!!!
Answer:
Step-by-step explanation:
tan Θ + tan 2Θ + √3 tan Θ tan 2Θ = √3
tan Θ + tan 2Θ = √3 - √3 tan Θ tan 2Θ
tan Θ + tan 2Θ = √3 ( 1 - tan Θ tan 2Θ)
(tan Θ + tan 2Θ) / (1 - tanΘ tan 2Θ) = √3
tan(Θ + 2Θ) = √3
tan 3Θ = tan () we know tan Θ = tan α; Θ = nΠ + α, n belongs to z
3Θ = nΠ + Π/3
Θ = nπ/3 + Π/9 for all n in Z