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Pythagorean identity . The basic relationship between the sine and the cosine is the Pythagorean trigonometric identity: where cos 2 θ means (cos(θ)) 2 and sin 2 θ means (sin(θ)) 2. - read more

What trig identity is sinxcosx ChaCha Answer: It is a Product to Sum/Difference. The identity is: sinX cosY = (1/2) [ sin (X + Y) + s... - read more

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