If sin(A+20)square =underoot3 upon 2 then find the value of A
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Answered by
2
sin(a + 20 ) = root3/2
sin60 = root3/2
therefore
sin60 = sin(a+20)
60 = a + 20
a= 40
hope it helps you
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sin60 = root3/2
therefore
sin60 = sin(a+20)
60 = a + 20
a= 40
hope it helps you
please mark me the brainleist and follow me
sheetaldash52:
But it is sin(A+20)^2
Ty so much
welcome
Answered by
1
Answer:
Step-by-step explanation:
sin(A+20)2 = sin60°
SIN AND SIN GETS AWAY.
A^2 + 40A + 400 = 60
A^2 + 40A + 340 = 0
Then solve it.
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