moedlmichele
moedlmichele moedlmichele
  • 23-04-2018
  • Mathematics
contestada

what is the value of x s i n (x + 22 degrees )=cos( 2x - 7 degrees )enter your answer in the Box x =

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calculista
calculista calculista
  • 23-04-2018
we know that

if  sin (x + 22°)=cos (2x - 7°)
then 
(x + 22°)  and (2x - 7°)------> are complementary angles
so
(x + 22°) +(2x - 7°)=90-------> 3x+15=90------> 3x=75------> x=25°

the answer is
x=25°
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