Asked by kudu
Given that sinθ = 2/3 and is an acute angle.
Find:
Tanθ giving your answer in surd form
θ = tan^(-1)〖(2/√5)= 41.81°〗
Sec^22 θ
θ= cos^(-1)〖(3/√5〗)=
Find:
Tanθ giving your answer in surd form
θ = tan^(-1)〖(2/√5)= 41.81°〗
Sec^22 θ
θ= cos^(-1)〖(3/√5〗)=
Answers
Answered by
Reiny
sinØ= 2/3 , Ø is in quad I
in my triangle, x = ? , y = 2, r = 3
x^2 + 2^2 = 3^2
x^2 = 5
x = √5
tanØ = y/x = 2/√5 or, if rationalized, 2√5 /5
in my triangle, x = ? , y = 2, r = 3
x^2 + 2^2 = 3^2
x^2 = 5
x = √5
tanØ = y/x = 2/√5 or, if rationalized, 2√5 /5
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