What are the trigonometric identities ?
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Step-by-step explanation:
The main trigonometric identities are Pythagorean identities, reciprocal identities, sum and difference identities, double angle and half-angle identities. For the non-right-angled triangles, we will have to use the sine rule and the cosine rule.
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Answer:
All the trigonometric identities are based on the six trigonometric ratios. They are sine, cosine, tangent, cosecant, secant, and cotangent. All these trigonometric ratios are defined using the sides of the right triangle, such as an adjacent side, opposite side, and hypotenuse side.
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