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3 years ago

Hope someone help.me

Mathematics

1 answer:

zvonat [6]3 years ago

7 0

x = r sin θ cos Ф

x² = r² sin² θ cos² Ф

y = r sin θ sin Ф

y² = r² sin² θ sin² Ф

z = r cos θ

z² = r² cos² θ

x² + y² + z²

= r² sin² θ cos² Ф + r² sin² θ sin² Ф + r² cos² θ

= r² sin² θ (cos² Ф + sin² Ф) + r² cos² θ

= r² sin² θ + r² cos² θ

= r² (sin² θ + cos² θ)

= r² √

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3 years ago

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2 years ago

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2 years ago

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konstantin123 [22]

Answer:

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3 years ago

Hope someone help.me​

Hope someone help.me