1 Sin 2x 1 Cosx
Does 1 - sin^2x = cos^2x?
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Homework Statement
My book is showing 1 - (sin^2)x = (cos^2)x, is this true? If so nether what bailiwick do I find more data nigh this. I plant cofunction identities where sin(90° - θ) = cosθ but I'm non sure if that's the same matter.
Homework Equations
The Try at a Solution
Answers and Replies
Homework Statement
My book is showing 1 - (sin^2)x = (cos^2)x, is this true? If so under what subject area do I notice more than data near this. I found cofunction identities where sin(90° - θ) = cosθ merely I'm not certain if that's the same thing.
Homework Equations
The Attempt at a Solution
Merely rearrange [itex]\sin^2 ten + \cos^2 x = 1[/itex], which yous recently asked most in another thread.
Yes, describe a right triangle and label i of the angles 10. Now label each side a, b and c. Ok so what is sin(x) in terms of a,b,c? So what is sintwo(x)? Keep this for cos2(x) and you'll meet the result holds.My book is showing 1 - (sin^ii)x = (cos^2)x, is this true?
Basic trigonometry? After beingness taught most graphing trig functions I believe you're exposed to more trig identities.If and then under what field of study practice I find more than information about this.
thanks, i feel stupid, only at to the lowest degree i know the answer
thanks, i feel stupid, only at least i know the answer
Nah being stupid would be not knowing the answer in the exam
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1 Sin 2x 1 Cosx,
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