Asked by Kewal
Solve the equations
secΘ - 1 = (√2 - 1)tanΘ
secΘ - 1 = (√2 - 1)tanΘ
Answers
Answered by
Damon
(1/cos x)-1 = (sqrt 2 - 1)(sin x/cos x)
1 - cos x = sin x sqrt 2 - sin x
1 - cos x + sin x = sin x sqrt 2
I want sin x = cos x so try x = 45 degrees
1 = (1/sqrt 2)sqrt 2 sure enough
so x = 45 degrees or pi/4 radians
1 - cos x = sin x sqrt 2 - sin x
1 - cos x + sin x = sin x sqrt 2
I want sin x = cos x so try x = 45 degrees
1 = (1/sqrt 2)sqrt 2 sure enough
so x = 45 degrees or pi/4 radians
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