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Nikitich [7]
2 years ago
14

Verify sin4x-sin²x=cos4x-cos²x is an identity.the 4 is supposed to be small like the 2

Mathematics
1 answer:
kodGreya [7K]2 years ago
3 0

Answer:

<h2>It's an identity</h2>

Step-by-step explanation:

\sin^4x-\sin^2x=\cos^4x-\cos^2x\\\\Ls=\sin^2x(\sin^2x-1)=-\sin^2x(1-\sin^2x)=-\sin^2x\cos^2x\\\\Rs=\cos^2x(\cos^2x-1)=-\cos^2x(1-\cos^2x)=-\cos^2x\sin^2x\\\\Ls=Rs\\\\\text{used}\\\\a^n\cdot a^m=a^{n+m}\\\\\text{distributive property}\ a(b+c)=ab+ac\\\\\sin^2x+\cos^2x=1\to \sin^2x=1-\cos^2x\\\\\sin^2x+\cos^2x=1\to \cos^2x=1-\sin^2x}

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The area of the triangle will be 24912 sq. units. Square units and other similar units are used to measure area.

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The space filled by a flat form or the surface of an item is known as the area.

The number of unit squares that cover the surface of a closed-form is the figure's area.

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For:

(X₂, Y₂) = (-2, 1)

(X₃, Y₃) = (4, 5)

d = 7.211103

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apply the pythogorous theorem for finding the height;

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To learn more about the area, refer to the link;

brainly.com/question/11952845

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