Skraaliosis
Skraaliosis Skraaliosis
  • 11-06-2021
  • Mathematics
contestada

if sin (A+B)=1 and tan (A-B)=1/sqroot 3

are acute angles. find out the value of A and B​

Respuesta :

sreedevi102
sreedevi102 sreedevi102
  • 11-06-2021

Answer:

A = 60° , B = 30°

Step-by-step explanation:

[tex]sin(A+B ) = 1\\\\\ \ \ (A + B) \ = \ \ sin^{-1} 1\\\\A + B = 90^\circ --(1)\\\\ \ tan (A - B) = \frac{1}{\sqrt{3}}\\\\(A-B) = tan^{-1}\frac{1}{\sqrt3}}\\\\A - B = 30^\circ --(2)\\\\ (1) + (2) => 2A = 120^\circ\\[/tex]

                   [tex]A = 60^\circ[/tex]

[tex]from \ (1) \\A + B = 90^\circ\\60^\circ + B = 90^\circ\\B = 90^\circ - 60^\circ\\B = 30^\circ[/tex]

                 

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