Question

if sin (A+20)°=ANDERUTE3/2 , then the value of A

Answer 1

Hey,
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We are given,

Sin (A+20)° = √3/2

Lets Start, We know that Sin 60° =√3/2

=> A + 20° = 60°

=> A = 40°
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# Regards :-)

Answer 2

Answer:

$\textbf{Given that,} \\\\\bf{ Sin ( A + 20 ) = \dfrac{ \sqrt{3} }{2} }$

$\textbf{We know that Sin 60 is} \: \bf{ \dfrac{ \sqrt{3} }{2} }$

⇒ Sin ( A + 20 ) = Sin 60

⇒ A + 20 = 60

⇒ A = 60 - 20

⇒ A = 40

Hence the value of A is 40°