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Calculate the acute angles, rounded to the nearest degree, formed by the plane ?:−5?+5?+?=−10 and: (a)...

Calculate the acute angles, rounded to the nearest degree, formed by the plane ?:−5?+5?+?=−10 and: (a) the ??-plane Answer: (b) the ?-axis Answer:

please don’t give me the answer 56 because its incorrect

thank you

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