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3 years ago

Solve: (w)(3w+5)=0. Multiple answers, if any, should be separated by commas. Enter only integer(s) or fraction(s).

Mathematics

1 answer:

sp2606 [1]3 years ago

7 0

Answer:

$-\frac{5}{3}$

Step-by-step explanation:

Given expression:

(w)(3w + 5) = 0

Expand the parentheses;

3w² + 5w = 0

3w² = -5w

Divide both sides by w;

3w = - 5

w = $-\frac{5}{3}$

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Tan3A=tan(2A+A)

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tan(2A+A)=(tan2A+tanA)/(1 - (tan2A)(tanA))— (1)

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So, by substituting tan2A in (1),we get,

=[2tanA/(1 - tan^2A) + tanA]/1- (2tanA/(1 - tan^2A))(tanA)]

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Therefore, tan3A= [3tanA - tan^3A]/[1-3tan^2A]

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3 years ago