Math, asked by AustinMoore5613, 1 year ago

Sin (3x+20)=Cos (3y-20),find tan(x+y)

Answers

Answered by MarkAsBrainliest
9
\textbf{Answer :}

Given that,

sin (3x + 20) = cos (3y - 20)

⇒ sin (3x + 20) = sin {90 - (3y - 20)}

⇒ 3x + 20 = 90 - (3y - 20)

⇒ 3x + 20 = 90 - 3y + 20

⇒ 3x + 3y = 90

⇒ x + y = 30

∴ tan (x + y)

= tan30°

= 1/√3

#\textbf{MarkAsBrainliest}
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