Question

(1+cos A) (1-Cos A) (1+cot² A) = 1









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Answer 1

Answer:

see the attachment

Explanation:

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Answer 2

Answer:

solid: Has a definite shape and volume. liquid: Has a definite volume, but take the shape of the container. gas: Has no definite shape or volume. change of state: When matter is converted from one of the three states (example: solid, liquid, or gas) to another state.